In one episode of Rugrats, Angelica pushes Chuckie out of the way of an oncoming Big Wheel. Chuckie interprets this as having saved his life, and Angelica tells him that, once someone saves your life, you have to be their slave. At the end of the episode, Angelica is stuck in a closet, Chuckie frees her, and Angelica gushes that he saved her life. Chuckie points out what that means, and while Angelica tries to backtrack, in the final scene, we see her muttering as she drives Chuckie around.
In "Home Away from Homer", Marge witnesses Homer and Bart watching a soft-core film and demands that Bart look out the window. Bart obliges, since unlike his mom, he knows that the soft-core film is also being filmed in Ned Flanders' house, which when Marge realizes, she is even more horrified, and proceeds to drag Homer by the ear to force Homer to tell Ned Flanders about his current guests taking advantage of his trusting nature by doing this.
An example in "Dead Putting Society" when Homer and Ned placed a signed bet if Bart or Todd wins the miniature golf tournament. If his son "didn't win" (it originally said the father of the loser, but Ned suggested to Homer that he change it because of its insulting connotations), the father has to mow his neighbor's lawn wearing his wife's Sunday dress. Both boys tied meaning that neither of them lost, but didn't win as Homer pointed it out. Homer and Ned both end up mowing the lawn yet it backfired as Homer wanted to see Ned humiliated (he wasn't and that was the only reason Homer was willing to go through it).
In the episode "And Maggie Makes Three." Marge makes Patty and Selma promise not to tell Homer Simpson about her being pregnant with Maggie. They promise it. Unfortunately for both Marge and Homer, the agreement only stated that they not tell Homer. It never said anything about whether they'd tell anyone else besides Homer, or that they have a "Baby Shower" at Marge's place before Homer got home from work.
A couple of times when a suspicious Marge asked Homer what he was up to, Homer would reply, "Marge, I'm not gonna lie to you," and then immediately carry on without saying anything more.
This exchange between Bart and Principal Skinner:
Bart: What now, Principal Skinrash? Skinner: My name is Principal Skinner, and you shall refer to me as such. Bart: Sure thing, Such. Skinner: I shall deal with your insubordinate wordplay later.
This shows up twice in the "Treehouse of Horror IV" segment "The Devil and Homer Simpson". As the title implies, the episode's plot centers on Homer making a Deal with the Devil (Ned Flanders) in exchange for a doughnut. The first example shows up regarding their contract: Homer's soul will be damned the moment he finishes the doughnut...so if he doesn't finish it, he will remain safe. Of course, Homer being Homer, he ends up eating the last bite later that evening. Lisa gets Ned to agree to a trial for Homer's soul; just as the jury is about to find in Ned's favor, Marge enters with a photo from her and Homer's wedding day. The back of the photo has a message from Homer written on it, in which he offers Marge his soul in exchange for her marrying him. The jury decides that since Marge is technically the owner of Homer's soul, it wasn't his to sell to the devil in the first place, and lets him off.
Nearly proves deadly to Darkwing Duck. A trucker and conspiracy theorist tells Darkwing that while vampiric red potatoes are fairly reasonable, russets are nigh on beasts and can only be beaten by shaking a specific species of plant (which fortuitously turns out to be Bushroot) and saying potato backwards. After fruitlessly shaking Bushroot and shouting "otatop" over and over, Gosalyn asks what he thinks he's doing; when he tells her that to beat the vampire potato he has to shake Bushroot and shout potato backwards — which makes the potato cringe, and Darkwing realize the trucker was speaking literally, and the key phrase was not "potato" backwards, but "potato backwards". Yeah. It was a really strange episode.
The angry professor trapped in the body of a Hibagon responds "very poor choice of words" to Drew saying "put him down" on The Secret Saturdays.
The direct-to-DVD Barbie as Rapunzel has a literal case in play: incensed evil lady puts spell on tower to permanently lock up Rapunzel for not giving her name of guy she's been seeing, spell specifically says "Never release your prisoner with a lying heart"; however, Rapunzel genuinely didn't know (the last time she saw him, she specifically tells him that she doesn't want to know) and thus wasn't lying, and after escaping, Rapunzel uses painting she's made earlier to put evil lady into tower instead, replete with literal Ironic Echo when she realizes she's just been Hoist by Her Own Petard.
In "Bought and Scold": Morebuckses buy Townsville. Princess becomes mayor, puts out a decree that makes crime legal (and crimestopping illegal). Girls are frustrated... until they realize they can steal Princess' goodies without retribution. Not knowing that the girls stole her goods, Princess hastily retracts decree, girls stop crimes, girls dump Princess' goodies on to her lawn in exchange for giving the original mayor back his position.
"Him Diddle Riddle" showed the girls solving riddles set up by Him, who is holding the Professor hostage. The had to solve the riddles within the amount of time they had, otherwise the Professor would "pay"… full price for the pancakes at the "Otto Time" dinner Him happens to own for some reason.
In "Helter Shelter" the Professor tells Bubbles to stop bringing animals home as they don't like to be locked up in closets. She then brings a whale home knowing he won't fit in a closet.
Lobo appears in the episode "Hereafter" and is gunning to replace the recently-deceased Superman. When the two parted ways in Superman: The Animated Series, Superman made Lobo swear "to leave me, and everyone else on Earth, in peace". Nobody said anything about leaving just the Earth in peace, so with Superman out of the equation... notably, when Superman turns out to be not dead and returns in the end, Lobo's promise kicks in again and he leaves without a fuss. By his standards.
In one episode of Johnny Bravo, Johnny chases a leprechaun in order to get a wish. He finally succeeds, and wishes to be attractive to "all the chicks". The leprechaun grants the wish (remarking on how odd Johnny is), and seconds later Johnny is stampeded by lovesick chickens, who coo things like "Ooh, he's a big one!"
Jackie Chan Adventures: Favored by Jade to slip out of Wait Here. Also when she's told to stay with Uncle. Since Jackie never specified which "Uncle"... And, in "The Stronger Evil", when Jackie and Capt. Black went to stop the Dark Hand from robbing the armored car, they wouldn't even let Jade finish asking to go with them and quickly yelled "NO!" Since she never stated what she'd ask, they can't tell what they told her not to do. Also in that same episode, Jade had tried to operate a jetpack, prompting Jackie to tell her not to operate machines she doesn't know how they work. She then asked the inventor to tell her how it works.
American Dad!: Stan really wants to give Steve his first firearm for Christmas. Francine protests.
Francine: Steve is too young for a gun, Stan. Promise me you won't get him a gun for Christmas!" Stan: I promise I won't get Steve a gun for Christmas! (Stan hands Steve an AK-47) Stan: Merry Wednesday, son!
The two-part pilot makes use of this. After Twilight reads the legend of Nightmare Moon and warns Princess Celestia of her possible return, Celestia replies, "You simply must stop reading those dusty old books!" and sends her to supervise the Summer Sun Celebration in Ponyville and make some friends. Later, after Nightmare Moon does return and is defeated by Twilight and her friends, Twilight accuses Celestia of dismissing her warning. Celestia reminds her that technically she had done no such thing.
Also happens (sorta) in "Swarm of the Century". Faced with the Parasprite swarm devouring every and anything edible in sight, Twilight Sparkle casts a spell to make them "stop eating all the food". It succeeds. They stop eating food, and start devouring... EVERYTHING ELSE, wrecking Ponyville completely.
Before the final challenge in "May The Best Pet Win", Rainbow Dash sets down the win condition: her pet will be the one that "crosses the finish line with [her]", her assumption being that due to her speed, she'll be the first across. Following an avalanche that pins her wing under a rock, she ends up crossing the finish line last, on the back of a tortoise. Her friends inform her that a falcon won, but by now Rainbow Dash is attached to the tortoise... so she points out that while the falcon might have crossed first, the tortoise (due to carrying her) crossed with her. The falcon takes it quite well.
Iron Man says he strongly disapproves of Hawkeye's vendetta against Widow, and says he should just let it go. Since Hawkeye's going to ignore this anyway, Cap and Panther tag along to make sure he doesn't get killed. When things go wrong and they have to call for back up, Tony chews them out for not listening to him, but they point out he didn't directly order them not to go. Merely strongly suggested it would be a bad idea.
Hank dismisses the idea that strange probe involved aliens. When it turned out to actually be an alien probe, Hank defended his previous statement by pointing out that he said there was no organic material involved, thus not precluding the possibility of it being an alien robot.
U.S. Acres episode "The Ugly Duckling", Orson was telling Booker and Sheldon a version of said fairy tale. That version had Bo as a wizard who worked at a bar. Whatever you do, you must never ask him something like "Make me a sandwich". He'll turn you into one.
This is how Coop got a hold of Megas XLR. The junkyard dealer wanted to get Coop out of his hair and told him everything in a certain pile was two bucks. When Coop accidentally discovers the wrecked remains of the title mech:
Coop: Two bucks, huh? I'll take it!
(He never actually paid the two bucks.)
Also in another episode Kiva makes a deal with Captain Warlock; her life for Coop and Jamie's. [[While Warlock DOES in fact let them go You Said You Would Let Them Go]] he "let's them go" in such a way that they'd be lucky to survive the crash to the nearest planet.
Kim Possible: When Dr. Drakken was searching for a weather machine at a shop that sells them, upon finding the right one, he declares that he'll take it. Unfortunately for the owners, he never necessarily said he'd discuss the object or pay. This also acts as a deconstruction of the trope, as Drakken's hasty action also resulted in him leaving without the manual, eventually forcing Shego to return to the depot to steal the manual, coincidentally at the same time that Kim Possible had arrived to investigate the theft.
Comes up a couple of times near the finale of W.I.T.C.H. The heroes team up with the previous seasons Big Bad, Phobos, to take down Nerissa. They make him swear on the Heart of Kandrakar that after Nerissa is defeated, he will not use her power for himself. He then backstabs the heroes and tries to take over Kandrakar anyway, which is exactly what the heroes had counted on. Due to the nature of his vow, if he had even set foot in Kandrakar with hostile intent he would have forfeited all of his stolen power. It would have worked too, if his dragon Cedric hadn't used his own to steal his power before he could break the vow.
Cedric: He offered me a fraction of his power. I choose five fifths, maybe four fourths. In other words, all of it.
Combines with Literal Translation to get Beetlejuice in trouble frequently. In one episode, an ill-timed quip of "Two heads are better than one!" gets his head stuck on the same body as the Monster Across the Street. In another episode, a band of former foes of his tricks him into saying "I'm coming apart at the seams!"
In Gargoyles, magic runs on this. Curses can be lifted via the very literal language of the spell. For example, the Gargoyles were incased in stone for a thousand years, the spell noted they would stay that way until the castle was above the clouds. How did Xanatos counter it? Put the castle on top of a skyscraper. During the "City of Stone" four-parter, Xanatos and the Manhattan Clan discover that Demona's spell to turn New York's humans into stone by night would only be broken when the sky burns. His solution is to load the gargoyles and his Steel Clan robots with packs loaded with flammable gas, and then ignite the gas after they fly all over the city dispensing it. GregWeisman stated that adding a counter measure to spells/curses makes them a lot easier to cast. However, it never had to be said that the counter measure was easy to perform (how likely was it for a castle to be raised above the clouds in the 10th century)
One episode of Batman: The Animated Series has Catwoman promise to go into police custody after helping Batgirl on a case. She does, only to escape not a minute later, saying "I said I'd let them take me. I never said how far."
In "Bugs and Thugs", gangster Rocky gives his lackey Mugsy a gun and tells him to take Bugs Bunny into the other room and "let him have it". Once in the room, Bugs asks for the gun because, as the boss said, Mugsy was suppose to let him have it. Mugsy gives Bugs the gun, and you can probably guess the rest.
A similar gag in "Strife with Father". A sparrow is teaching Beaky Buzzard to catch chickens, and gives him a club to hit them with. When a rooster confronts Beaky, the sparrow shouts to Beaky to "Let him have it!" So Beaky lets the rooster have the club, which he uses to wallop the sparrow.
In the South Park episode "Christian Rock Hard", Kyle bets that Cartman will be unable to produce a platinum album, and seemingly loses and is prepared to admit defeat and pay up when Cartman does in fact sell more than one million albums with his Christian Faith+1 album. Then Cartman and Kyle learn that Christian music goes Gold, Frankincense and Myrrh; the bet was that Cartman would produce a platinum album, not that he would sell one million albums.
In an episode of Lilo & Stitch: The Series, Lilo says she can beat Myrtle at "any time, any place, any game" when it comes to baseball. Later, when Myrtle challenges her to a game of basketball instead, she quotes the "any game" part.
Nancy promised not to tell anyone Jordan is wealthy. However, she didn't promise not to tell she (Nancy) has a wealthy friend.
Three girls decided to dress like a celebrity known for, among other things, wearing a bell as a pendant. Not liking that, Mr. Besser threatened to make all students wear uniforms if he ever heard any of those bells again. The girls then stuffed their bells with socks so Mr. Besser wouldn't "hear" them. The loophole worked until one of the socks fell and he heard a bell, after which he made good on his threat.
Happens several times on The Fairly Oddparents whenever a wish went awry. For example, in "Most Wanted Wish", Timmy wishes he was the most wanted kid on Earth, and not only did he becomes pestered by everyone on Earth, as well as every fairy godparent, but this also made him wanted, as in "dead or alive".
In John Callahan's Quads!! Riley sells his soul to The Devil in exchange for being able to get an erection once more, on the condition that he only have to pay up when he dies. The Devil shows up about a day later to claim it, pointing out he never specified when Riley would die.
Futurama: During an episode where the crew go fishing, Leela boasts that she's the most experienced fisher, and even owns her own harpoon, causing Bender to remark "Harpoon, my ass". Leela proceeds to do just that.