To those with the strength to carry them, doors make for good improvised weapons to carry around. Those without said strength can still make use of doors in combat, however, by way of Tae Kwon Door: slamming a still-hinged door in their opponent's face. Depending on the medium, this can either knock your opponent out cold or kill them, either by way of blunt trauma or decapitation if they managed to get their head through before the slam. Depending on the situation, any usually innocuous or decorative features on the door can quickly become genuine threats in their own right thanks to the momentum of the slam; doorknobs become clubs, glass windows shatter to become jagged knives, handles become daggers, doorframe edges become sharp enough to cut, and should your opponent's head be sturdy enough to break through the door, they've now got wooden splinter-barbs all pointing towards their vulnerable neck.
This trope is not just limited to your standard building doors; portcullis generally don't even bother with pretending and are often outright spiked to facilitate skewering people from above as they close, vault doors are giant metal slabs meant to be swung around, vertically closing doors might as well be either blunted guillotines or crushers depending on their thicknessnote , drawbridges will leave anyone standing where they land Squashed Flat, Dilating Doors can leave your opponent Half the Man He Used to Be, and don't be fooled by the lack of mass that Future Portal Doors and Cool Gates have, either; they can be just as deadly, as 'shutting' them at the right time leads to death by Portal Cut.
A common inversion involves grabbing hold of your opponent and shoving them into the door, as part of what make doors so dangerous is their sturdiness and so you can rely on them being solid enough for the full effect of Newton's third law to affect your opponent.
Super Trope to Toyota Tripwire and Tactical Door Use, non-accidental and non-humorous Sister Trope to The Door Slams You. If someone is actively carrying around a door as an Improvised Weapon, then you're looking at Door Fu. Contrast Door Judo where doors are opened not to cause damage, but rather to prevent damage to the door and render the attacker Too Fast to Stop. No relation to HeelFace Door-Slam barring very specific circumstances. If the door breaks from the abuse, (typically from especially hard headed characters hitting it) you've just performed an accidental "Open!" Says Me.
Examples of slamming a door against someone:
- In Monsters, Inc., Mike slams a door on Randall and says, "I hope that hurt, lizard boy!"
- Back to the Future Part II: After rescuing Marty with the DeLorean in Alternate!1985, Doc Brown knocks out Biff with one of its doors.
Marty: Nice shot, Doc.
- Deadpool: Deadpool does a variation where he kicks a SUV's door off its hinges into a motorcycle-mook who's riding up alongside the SUV to shoot him.
- In a deleted scene from Galaxy Quest, Tawny tricks a couple bumbling enemy soldiers into getting flattened by a blast door.
- During the Fight Scene in The Great Race, Leslie slams a door in the face of one of the Baron's mooks — and doesn't seem to realize it until he opens the door and said mook collapses.
- When Hellboy and Johann have a locker room disagreement in Hellboy II, Johann, being a formless ectoplasmic being and thus Made of Air, travels inside the lockers and begins slamming them open, one at a time in Hellboy's face — and every other part of him — repeatedly.
- In Home Alone 2, the two crooks hear a noise on the other side of the door. It's a heavy toolchest, which smashes them and the door against the opposite wall. In utterly unrealistic fashion, they only get their noses bent.
- In Lady Frankenstein, Charles slams the door of the laboratory cold room door into the Monster's face during the final battle.
- Lethal Weapon 2: After a couple of thugs try to drown him, Riggs repeatedly slams a car door on the head of one of them
- A version is seen in The Living Daylights. Bond's Vienna contact Saunders is killed when Necros uses a small explosive charge to propel a sliding glass door into him at lethal velocity.
- The Lord of the Rings: The Fellowship of the Ring. When the Nazgul burst into Bree, the terrified door guard looks through the door, and gets it slammed off its hinges, on top of him. Ouch.
- In Mighty Morphin' Power Rangers: The Movie movie, Adam disposes of one of Ivan's grunts through the means of a construction yard vehicle's door.
Adam: Let me get the door!
- In Murder on the Orient Express (2017), the Professor knocks out the Count by slamming the compartment door into him when the Count is attacking Poirot.
- In Jackie Chan's Operation Condor a mook is hanging onto the balcony, eavesdropping on the heroes conversation. Jackie slams open the French doors, which crush the man's hand so he falls off.
- In The Punisher (2004) during Frank's fight with the Russian he gets his head slammed by the Russian closing the refrigerator door on in twice.
- The Quick and the Dead. One of the Big Bad's mooks is hitting and abusing Cort, a former gunman turned preacher, in the belief that he won't hit back. As he's thrown at the Big Bad's feet, Cort suddenly lashes back with a foot, slamming the door in the mook's face and breaking his nose.
- The Return of the Pink Panther: A burglar breaks into a museum to steal the title diamond. The alarm goes off and guards pursue the burglar. As a guard is approaching a door the burglar throws it shut, hitting the guard and knocking him out.
- In the 2004 San Antonio movie, police Lieutenant Bérurier (Gérard Depardieu) and his young ward Toinet follow a trail to a bad guy's flat and knock. The bad guy spots them through the eye-hole and is about to gun them down through the door, but he waits too long. Béru runs out of patience and just rams the door into his face, pinning the bad guy underneath it.
- Terminator 3: Rise of the Machines. When the Terminator walks up naked to a strip club, the bouncer thinks he's part of the act and tells him to go round to the front entrance. The Terminator just walks past him and yanks open the door, slamming it into the bouncer as he does so.
- In Toy Soldiers, the Big Bad rushes into the kitchen looking for one of the Kid Heroes. The kid in question hides behind the kitchen's swinging door, and for a moment it looks like it's worked. And then the Big Bad grabs the door and slams it into the wall, crushing the kid and knocking the wind out of him.
- The War Wagon: Taw slams the door of the War Wagon into the face of one of Pierce's mooks when he takes back his gun. Later, during the Bar Brawl, he kicks the saloon door into The Sheriff's face.
- The Yakuza. Robert Mitchum's character discovers his friend has betrayed him. He knocks on the door of his office and pretends to the bodyguard who answers that he's come round for a casual chat with his friend. When the bodyguard unhooks the chain lock, he slams the door open, pinning the bodyguard against the wall, then fires his gun into the door, killing him.
- Codex Alera: In Academ's Fury, the Canim break a door down on Centurion Bartos, crushing him to death. Max and Miles later do the same thing to the Canim.
- The Specialist, by Gayle Rivers. The protagonist realizes he's being followed, so enters a public urinal and when exiting "accidentally" slams the door in the man's face. The man is only disoriented enough to be quickly searched to establish that he's carrying a gun before he comes round. It's more the lack of overt anger afterwards that establishes that he's a professional intelligence agent.
- Star Wars Legends: In Galaxy of Fear. The ship's A.I. has gone evil, the doors are science-fiction things that slide open, and when one of the heroes starts to pass through a doorway...
As he did, the heavy door slammed shut with the force of a rocket, crushing Dash against the door frame.
- In The Twelve Chairs, a minor character Alchen is somewhat obsessed with door springs and outfitted every door in the retirement home he's in charge of with springs of his own makings and extremely varying designs, including pneumatic, hydraulic, blocks-and-counterweights and so on. The only thing those contraptions have in common is them being extremely powerful, so those doors open with tremendous effort and then snap shut like bear traps, slamming people (especially old ladies living there) on regular basis. Even Ostap Bender, after paying a visit to Alchen, gets smacked "below his back with a-ton-and-a-half force" by the front door.
- Blackadder's Christmas Carol: A knock comes from the door, and says Blackadder to Baldrick: "See who that is, Baldrick. And whoever it is, slam the door in their face, or I'll slam your face in the door." Unfortunately for Blackadder, it is Queen Victoria and Prince Albert.
- Played for Laughs In Bottom during one of the many violent altercations between Richie and Eddie, Eddie repeatedly slams a refrigerator door against Richie's head to an accompanying Laugh Track.
Eddie: You know, It's funny; they say television encourages violence. I'm smashing his face in, and we haven't got [a television]!
- Buffy the Vampire Slayer:
- Once while fighting a group of vampires in a parking lot Buffy slams a car door on a vampire's neck, decapitating him.
- During a fight in Joyce's house, Faith opens a French door in Buffy's path so she goes crashing through the glass.
- Giles realizes that one of Glory's minions is listening at the door, so he yanks it open causing the eavesdropper to start to fall inside, then slams the door into the minion's face.
- In Daredevil, Wilson Fisk uses the door of his limo to repeatedly bludgeon Anatoly Ranskahov's head until he finally gets decapitated.
- Doctor Who: In "It Takes You Away", after Ryan locks the door to the bedroom and pockets the key so Hanne, who is blind, won't try to go through the portal, she later knocks him out by slamming a door in his face to get the key.
- In Leverage, Eliot Spencer uses this as an attack. He is fighting a group of drug dealers, one of whom is in a truck repeatedly trying to get out to help his friends. Every time he tries, Eliot slams the door on him, at one point simply yelling "stay in the car!" which apparently intimidates the man enough not to even try the other door.
- MacGyver (2016) has Mac in "Muscle Car + Paper Clip" go up against a close protection officer of the US Secretary of Defense after he and Cage try to abduct him because of hackers going after his pacemaker and he's not convinced that someone's after him. Mac decks him by using the Suburban's SUV door to stun him before he gets knocked out cold.
- The New Avengers: An intruder kicks the door closed into Steed's face as he goes to enter Stannard's apartment in "The Eagle's Nest".
- NCIS: New Orleans: In "Collateral Damage", a fleeing suspect swings open the door of a cargo container to flatten one his pursuers, who runs into it at full speed.
- Rizzoli & Isles: In "Love Taps", Nina stops a suspect who is attempting to flee on skateboard by kicking a gate into him as he tries to skate through it.
- At WrestleMania 18, Christian won the Hardcore title by slamming a door in Mighty Molly's face.
- This is an actual gameplay mechanic in Bonanza Bros.. In fact, the first enemy in the game has almost certainly been deliberately placed to be dispatched in this manner. The title characters can pull it off to temporarily knock out guards; useful when said guard is armored and otherwise immune to bullets. But said guards can pull the trope right back on you if you stand too close to the door as they enter.
- In Brain Dead 13, this happens to the centipede in the wine cellar, except that when it chases Lance towards the exit, he opens the door and intentionally slams it into its face, putting it out of commission.
- Dwarf Fortress: A drawbridge destroys anything under it while lowering, if it isn't too big to prevent the bridge from coming down.
- Faust from Guilty Gear weaponizes this with one of his special attacks, which has him disappear, then emerge from a door that suddenly appears in front of/behind his opponent.
- Kratos disposes of Theseus in God of War II after the fight proper by trapping him between a pair of gates, one locked, one moveable, and repeatedly slamming the moveable gate into Theseus's face untill he dies.
- A gameplay mechanic in Gunpoint. Wire a door just right, and it'll smack a rent-a-cop in the face. This knocks them out. Wire a door just wrong, and it'll smack you in the face. This gives you an achievement. Jumping kick a door off its hinges, and it can hit a rent-a-cop in the face. This knocks them out and gives you an achievement.
- Hotline Miami: Jacket opens the door with a slam, which can knock a mook down if they are hit by it. Better; there's an unlockable mask that lets you kill mooks by hitting them with the door slam. You can keep using doors, after they've been used, so you can always cause a door slam.
- In the 3D Legend of Zelda games, fake doors crush Link against the floor by falling on him.
- In Luigi's Mansion, some of the doors are fake. When Luigi goes to open them, they'll swing around and crush him against the wall.
- This is the main form of attack of the eponymous mouse policeman in the Arcade/NES classic Mappy. The game allows the player or open or close doors in the face of enemies to stun them. There are also flashing doors which release a shockwave when opened that sends them flying out of the house.
- This can be done in the Metal Gear games, starting with Metal Gear Solid 2: Sons of Liberty. If you're hiding in a locker or similar, exiting while someone is directly in front of the door will knock them out of the way (possibly creating a domino effect if he flies into another person). Metal Gear Solid 3 introduced swinging doors, and charging through them full speed will knock aside anyone on the other side of the door. In all cases, these are quite unstealthy, but handy if you need to make a run for it in a pinch.
- Resident Evil 4 & 5 allow you to either open doors slowly and quietly in order to stealth in, or loudly kick the door open. If you use the more Dynamic Entry then any enemies standing on the other side will be knocked back.
- One of the attack techniques of everyone's favourite mechanical assassin, Robot Ninja Haggle Man.
- In Saints Row 2, the Boss knocks a door off its hinges when breaking into Johnny Gat's hearing, squashing one of the bailiffs under it (and promptly taking his keys to open Johnny's cuffs).
- In Splinter Cell: Chaos Theory, you can kick open doors and knock out anyone else who is blocking it from the other side. A guard can also kick open a door if something is blocking it. If that something is you, then the door will knock you out, causing an instant mission failed.
- In various of WWE Video Games, you can slam the other wrestler against doors in the Backstage arenas.
- In Yakuza 1, Kiryu kicks open a door a guy happens to be standing on the other side of, sending him flying offscreen. In other games, this is also one of Kiryu's HEAT actions where he crushes a thug's head in a taxi cab door.
- In the The Adventures of Jimmy Neutron: Boy Genius episode "Party at Neutron's", Jimmy knocks out a velociraptor by slamming a door in its face.
- In the Buzz Lightyear of Star Command prologue movie our heroes Buzz Lightyear and Warp Darkmatter are faced with a locked door to the Evil Emperor Zurg's hidden laboratory, which is immune to their laser weaponry. After Buzz gives up on blasting it down Warp decides to just walk over and knock on it, causing one of Zurgs minions to answer said door to the hidden laboratory — which Warp then immediately slams in his face. Door now unlocked and minion knocked out, they walk right in. Although this might have been all part of the plan, considering Warp's status as The Mole for Zurg.note
- In the Looney Tunes episode "Easter Yeggs", Bugs Bunny is being chased by Elmer Fudd, so Bugs closes a door on him, and Elmer's head goes right through the door. Bugs then proceeds to paint Fudd's face it like an Easter egg, and a Bratty Half-Pint that was antagonizing Bugs earlier grabs it and tries to smash it open.
- The Simpsons has used this a few times.
- In "Duffless", it's Played for Laughs: Homer sees that Barney is too drunk to drive and tries to knock him out using his car's door. Barney gives up and hands Homer the car keys.
- In "Treehouse of Horror XI" story "Night of the Dolphin": the Final Battle has a dolphin using a car door to slam Comic Book Guy's head.
- In the Teenage Mutant Ninja Turtles (2003) episode "Hun on the Run", a fight between Hun and Bishop sees Bishop close a train car door to trap Hun's arm in it. It doesn't last as Hun responds by ripping the door off its hinges and attempt to bludgeon Bishop with it.
- Space Ghost episode "The Web". Black Widow forces Space Ghost to fight a monster in an arena without his power bands. When Space Ghost gets his power bands back and can put up a fight, Black Widow calls for her guards to attack him. As they run through a door into the arena, Jace pulls a lever that causes the door to slam down on them and prevent them from entering.
Examples of slamming someone against a door:
- James Bond is fond of this trope in the numerous fights that has happened throughout the franchise. Not that windows, curtains, or other furniture get a pass either.
- In Casino a local boy takes his cowboy boots off and puts his feet up on the card table where he's playing. After rudely refusing attempts by both the casino manager and "Ace" Rothstein to get him to put his shoes back on and show respect, Ace tells his security staff to literally throw the guy out and "Use his head to open the door." They do just that, with a couple of them picking the guy up and ramming him into the door like a battering ram.
- In The Raid Redemption, Rama uses a variation of a facebuster, grabbing a mook's head and bringing it crashing down on a broken door.
- Callahan's Crosstime Saloon series short story "The Guy with the Eyes". Callahan's Bar has a heavy oak door with a poorly-repaired split in the centre. The split was caused by the head of a thieving patron named Big Beef McCaffrey in 1947 when Callahan threw him out of the bar.
- On Married... with Children, Al likes to do this to any of Kelly's boyfriends he finds unsuitable (i.e. most of them). As he is tossing them out of the house, he "introduces" their face to various parts of the door first.
- Law & Order: Criminal Intent: In "Gods & Insects", the Victim of the Week is murdered by having his head slammed repeatedly in a car door.
- In Final Fight Streetwise, Kyle Travers has to deal with "The Weasel" (real name: Nicky Wissell) about clues of where's his brother Cody. After sending some thugs (and defeating them), Kyle hasn't a better idea than corner Weasel and slam his head in his office's door until he wants to talk.
- Yakuza 0 has this whenever a story level takes place. When the last man in a room is knocked out, the door to the next room is shown being opened by Kiryu/Majima punching a Mook through it. Presumably the handle was jammed or something.