[[quoteright:262:[[Manga/EatMan http://static.tvtropes.org/pmwiki/pub/images/Eatman-Vol08-1572.jpg]]]]
[[caption-width-right:262:Is that a plot device in your mouth OrAreYouJustHappyToSeeMe]]
->''"Kiss the girl, get the key. They never taught me ''that'' in the Obsidian Order."''
-->-- '''Elim Garak''', "[[Recap/StarTrekDeepSpaceNineS04E10OurManBashir Our Man Bashir]]", ''Series/StarTrekDeepSpaceNine''
The hero has his back up against the wall. He's tied to the chair blindfolded, the firing squad is taking aim, the shark tank is sliding into position, the laser cannon/deathtrap is warming up, and his last cigarette is already half ash, you know the drill. By all accounts, his pooch is clearly about to be screwed.

And the MadScientistsBeautifulDaughter or TheBaroness or the FemmeFatale moves in for that last lingering sadistic KissOfDeath to resolve that pesky {{UST}}...

Cue the DownerEnding, right? Not so much; as it works out, during the kiss she slipped into his mouth the key to his shackles, or a lock pick or the appropriate piece of {{Phlebotinum}}, ensuring that our intrepid hero lives on to fight (and kiss) another day.
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!!Examples:

[[foldercontrol]]

[[folder: Anime and Manga ]]

* ''Manga/EatMan'': Rain slipping Bolt the last piece of her gynormous {{BFS}} in the pick.
* In the manga ''[[{{Manga/AnatoliaStory}} Red River]]'', Rusafa is framed for assaulting a nobleman's daughter and is placed out in the desert, his arms and legs all stretched out and tied with leather and is to be left there for five days. If he manages to escape or is alive when the five days are up, he can go free because 'the gods allowed him to live'. Yuri goes to him (accompanied by guards), kisses him and passes him a sharp sliver of obsidian, which he somehow manages to spit out towards his hand, pick up and cut himself free with.
* Towards the end of ''Anime/ZeroZeroNineOne'', Mylene is captured by the Eastern Bloc. She manipulates the guard into kissing her. While their lips are locked, she tongues a CyanidePill into his mouth. After he falls over dead, she picks the locks to her restraints and escapes.
* A variation occurs in ''Manga/JoJosBizarreAdventure'', wherein Jotaro frenches a possessed, rabid school nurse in order to force her mouth open, allowing [[FightingSpirit Star Platinum]] to enter and pull out the enemy Stand controlling her with its teeth.
* In ''Manga/BananaFish'', Ash uses an empty medicine capsule and a kiss to pass important information to Eiji. It's implied to be Eiji's SacredFirstKiss, but [[YaoiGenre he doesn't seem to mind giving it to Ash ...]]

[[/folder]]

[[folder: Fan Fiction ]]

* In ''FanFic/ACureForLove'' [[Manga/DeathNote Misa]] attempts to do this with a ForcefulKiss, trying to restore [[spoiler: Light's [[MemoryGambit Kira memories]]]] with a scrap of the Death Note she has hidden under her tongue, but it doesn't work and Light pushes her away.

[[/folder]]

[[folder: Film ]]

* The 1979 film ''The Great Train Robbery'', based on the MichaelCrichton book of that name. (Scene's in the book, too.)
* Parodied in ''AustinPowers in Goldmember'', where Frau Farbissina passes a key to Dr. Evil this way, as an excuse to slip in an [[OverlyLongGag excruciatingly long, wet, sloppy makeout scene between the two of them]].
* In ''OurManFlint'', Gila commits to her HeelFaceTurn by using this method to slip Flint his [[SwissArmyWeapon cigarette lighter]].
* In ''Film/AeonFlux'', Aeon receives a pill containing a message this way.
-->'''[[RiffTrax Mike Nelson]]''': Man, there must be an easier way to get your vitamins.
* In ''Film/TheATeam'' [[spoiler: the team is being carted back to prison at the end when Face reveals that Sosa used their kiss goodbye to slip him the key to their cuffs.]]
* In ''TheAdventuresOfFordFairlane'', the titular character gives his girlfriend/secretary a sudden kiss at a dinner party to quickly get rid of a nasty-tasting hors d'oeuvre. Since, you know, spitting it out on the ground would be ''rude''...

[[/folder]]

[[folder: Literature ]]

* In Creator/RogerZelazny's ''The Changing Land'', the resurrected priestess Semirama does this (with considerable... emphasis) to slip a key to Dilvish (who happens to be [[IdenticalGrandson the spitting image of his ancestor]], who was her lover) when he's chained in the dungeon of the Castle Timeless.
* Played more or less straight in the climax of SMStirling's ''[[Literature/TheDraka Under the Yoke]]'': [[spoiler: the protagonist doesn't escape, but does manage to slip the microfilm to a supporting character who ''does.'']]
* In ''[[Literature/WarchildSeries Burndive]]'' a (female) dealer passed drugs this way to Ryan.
* In an example so inverted that it wraps around and makes a bizarre kind of perfect sense, in ''Literature/TheDresdenFiles'', Harry Dresden, as per usual in the dregs of his psychic battery, gets Lara Raith to kiss him and uses the emotion inspired by her succubus's power to fuel one last, desperate spell.
* A rather funny scene in ''Literature/{{Rihannsu}}: Swordhunt'' where Nveid passes Arrhae a MacGuffin this way, and she covers it by ''decking him'' for daring to kiss a senator without her permission.

[[/folder]]

[[folder: Live Action TV ]]

* Played with in ''Series/{{Angel}}'', when Doyle hands off his psychic whammy to Cordelia before he does the HeroicSacrifice thing.
** Also done later when [[spoiler:it was retconned that Cordelia gave Angel one of those psychic whammies so that he could end the series]].
* In the ''Series/StarTrekDeepSpaceNine'' episode "Our Man Bashir" a GenreSavvy Julian Bashir gets out of a pair of handcuffs in this manner via a holographic Bond Girl (who happens to be storing the genetic pattern of Jadzia Dax due to some TechnoBabble plot occurrences, and so [[FetishFuel looks just like her]].)
** Complete with the actual former spy who is also tied up with him remarking that they never taught that particular trick ("kiss the girl, get the key") when he was in the service.
* Somewhat inverted in ''Series/{{Jekyll}}''. Claire (apparently) swallows the key to Hyde's chains to prevent him from escaping. Hyde, ever horny and homicidal, gives her a long, slow one. Result.
* Happens in an episode of ''Series/{{Monk}}'' when the homicidal magician's stage assistant takes pity on the titular character. Being Monk, though, the very thought of swapping a plot device orally freaks him out enough to alert his captor.
* In ''Series/HarpersIsland'', Abbey [[spoiler: slips a key to Jimmy's handcuffs]] when she kisses him goodbye.
* In ''Series/LostGirl'', Kenzi visits Bo in prison, pretending to be her girlfriend, then gives her a kiss that lasts a ''really'' long time before the guards get fed up and drag her out. It is then revealed that Kenzi had passed Bo a magic gem.

[[/folder]]

[[folder: Music ]]

* KateBush depicted Houdini's trick in her song "Houdini" and on the cover of her album ''[[http://static.tvtropes.org/pmwiki/pub/images/kate_bush_the_dreaming_1982.jpg The Dreaming]]''. Take a good look in her mouth and listen to / read the lyrics some time.

[[/folder]]

[[folder: Western Animation ]]

* This is apparently foreplay for [[WesternAnimation/BatmanTheAnimatedSeries Talia and Bruce Wayne]]. In ''Daughter of the Demon'', she gives him a dose of scorpion villain antidote. In another episode, she gives him a lock pick.
** The scorpion venom antidote kiss comes straight from the ''Franchise/{{Batman}}'' comic on which the episode was based.
* Trevor Goodchild does this to ''WesternAnimation/AeonFlux'', except he actually stores the microfilm into her false tooth and closes the lid. With his tongue. No wonder she's into him.
** Happens in the movie as well. Two Monican agents walk up to each other with completely blank expressions, kiss passionately, slipping a message capsule from tongue to tongue, and then walk off again as if nothing had happened.

[[/folder]]

[[folder: Videogames ]]

* At the end of ''[[VideoGame/{{Hitman}} Hitman: Blood Money]]'' [[spoiler: Dianna slips 47 the antidote of the feign-death poison she injected into him earlier through her lipstick. Subverted in that if the player doesn't juggle the joysticks fast enough to get his heart rate up, he'll slowly be pushed into the giant crematorium oven]]

[[/folder]]

[[folder: Real Life ]]

* Turns out this is the trick behind a good deal of stage magic. In particular, Houdini's wife is said to have aided him in this fashion on several occasions.
* This is a favourite means of passing drugs to someone during a prison visit. Probably any prison show has depicted this at one time or another.

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