The game of tossing an object around in a group to keep it away from someone else.
In one scenario, the heroes are trying to keep the MacGuffin away from the villain or villains. Said villain is so focused on the item that they're not fighting the heroes who don't have it.
The answer is to throw the MacGuffin from hero to hero, with the villain being frustrated as he barely misses it each time. If there's a group of villains, expect multiple "yoink!" moments as the groups intercept it from each other.
In another scenario, the protagonist might be quietly minding his own business on the schoolyard when a group of bullies come up and take something of his, then pass it around to another one whenever he gets close.
If he can make a plausible threat of getting them in trouble, expect them to transparently lie and claim that it was only a game; otherwise, they might just keep the MacGuffin. One way or another, the protagonist will need to find an effective way to deal with the bullies.
Polar opposite of the MacGuffin Delivery Service and Hot Potato.
Luffy from One Piece, having extendable rubber arms is able to perform this trope all by himself to keep Usopp from drinking the group's water supply (and even names it as a technique: the "Gomu Gomu no Dame Da"; Dame Da roughly means "No Way" or "Stop That").
Around the time the Straw Hats depart Water 7, as part of their plan to recruit an unwilling Franky into the crew, they lure him to where the Sunny is docked by having the Franky Family steal his speedo, and passing it from person to person. Franky only gets it back after he joins.
It is also done several chapters later with Negi's unconscious body at a sleep over. Boy's a deep sleeper.
There is a Pokémon episode where the heroes and villains fight over the then unhatched Togepi egg while maneuvering through Weezing's smoke. Pikachu ultimately catches it before it could shatter, but Misty's the main mom to it.
In Yu-Gi-Oh!, Jonouchi/Joey and Honda/Tristan throw around a piece of Yugi's Millennium Puzzle before Joey tosses it into a pool. Later on, when Yugi stands up for the two of them, Joey gives the piece back.
Mr. Toad and his friends Mole, Water Rat, and Angus MacBadger actually do this to the deed for Toad Hall at the end of The Wind in the Willows segment of The Adventures of Ichabod and Mr. Toad in order to get rid of the evil innkeeper Mr. Winkie and his army of weasels, who have taken over the mansion after framing Toad for allegedly stealing a car.
Baloo and Bagheera actually do this to Mowgli near the middle of The Jungle Book in order to rescue him from King Louie and the other monkeys. Curiously enough, the animation for this scene was actually taken from the above film.
The climax of Shrek 2 did this with the Fairy Godmother's magic wand.
In The Boxtrolls, Snatcher tries to take away Lord Portley-Rind's white hat when Winnie takes it and tosses it back and forth between the other good guys, as a distraction while the Boxtrolls dismantle Snatcher's machine from under him.
Films — Live-Action
Teenage Mutant Ninja Turtles 2 has the titular turtles playing keep-away from the Foot with the last canister of mutagenic ooze. It eventually finds its way into Tatsu's hands when one of the defeated Foot lays a staff across the floor, causing Donatello to wipe out.
The Great Muppet Caper has loads of fun with this in the heist foil scene; once that diamond starts getting tossed around the muppets start bragging about their throwing skills, the host of The Wide World of Muppet Sports shows up, theme music starts playing...
The climax to the second live-action Scooby Doo movie features the gang trying to keep a piece of machinery away from a group of monsters.
The bullies in Beethoven do this to Ted with his glasses.
In the altered present in OOO, Den-O, All Riders: Let's Go Kamen Riders, Eiji and Ankh run into trouble with some kids, who proceed to steal Eiji's OOO Medals and pass them around in order to inconvenience poor Eiji. Later, in the climax of the film, those same kids steal the OOO Driver from the Shocker Greeed; the gathered crowd decide to help them out and join in the pass-around until the captive Riders are freed and the Driver is returned to Eiji.
In the Berenstein Bears chapter books, this is just one of the ways the bullies pick on Ferdy.
Kenan & Kel try this with a remote control in "Foul Bull" when they attempt to stop the former's father from seeing that they have something to do with Ron Harper's injury. It ends quickly when Roger grabs on Kel to get the remote.
Sonic Boom: Rise of Lyric has Sonic and Knuckles doing this with the Radiant Crystal, with both Lyric and Eggman, respectively, attacking them in an attempt to get it. Deconstruction ensues when Lyric and Eggman call off their "partnership", Eggman's attempt to kill Lyric with Metal Sonic goes awry, and the latter razes half of Slowpoke Isle all because Sonic and company wanted to get them away from Bygone Island.
In the Gotham Girlsweb Flash animated series, Harley Quinn and Poison Ivy tried to keep their loot from Batgirl in this manner. Unfortunately for the crooks, Batgirl took advantage of Harley's childish gullibility and called to her to throw the item to her. Harley, caught up in the tossing, did so and realized too late that she was suckered while Batgirl made her getaway.
One Rifftrax short features a young Woobie falling victim to this, courtesy of some neighborhood bullies. Riffer Bill Corbett notes that a game of "Monkey in the Middle" can quickly be ended by a good, swift crotch punch from the Monkey.
Given the Gotta Catch Them All nature of Jackie Chan Adventures, it's little surprise this often happens. The second season opener subverted it: once the keep away session (with the Talismans) was completed, Uncle angrily revealed that the heroes had gone after the wrongMacGuffin.
Kim Possible does it a few times. In "A Sitch In Time", it's the head of the Tempus Simia idol. In "Adventures In Rufus Sitting", everyone's after the microchip that the token naked mole rat has swallowed. They do the schoolyard version in A Sitch in Time, first The Movie.
This is directly used as a spoof of American Football in season 3 of Transformers Generation 1 as Blurr, Wheelie and the others throw Metroplex's conveniently egg-shaped Transformation Cog to one another while running.
Indeed, the term "yoink!" in these moments is a sort of inside gag for Transformers fans, as it pops up in a lot of fan works.
In the pilot of Transformers Animated, the Autobots do this trying to keep the AllSpark away from Starscream.
The Batman has an episode where he and Batgirl keep getting snatched from them (or dropped) the antidote that will cure the three villains.
In one episode of The Simpsons, the bullies do this with Bart's "Junior Campers" uniform. Bart actually wanted to quit so he started to walk away, telling them to keep it. Jimbo then tells him that he'd better pretend to want it back, or he'd be sorry. Bart complies.
In "The Return of Harmony, Part 2", brainwashed Fluttershy leads this game to keep the Elements of Harmony Reference Guide away from Twilight.
In Equestria Girls, the Humane Six attempt to keep the Element of Magic away from Sunset Shimmer, but she ulimately intercepts it and turns One-Winged Angel.
In "Daring Don't", everypony but Rainbow Dash play this game to keep the Ring of Destiny away from the villains. Dash and Daring Do, meanwhile, use the distraction to sabotage the rest of the rings.
In "For Whom the Sweetie Belle Toils", the Cutie Mark Crusaders play keep away with the box containing the sabotaged headdress so Sweetie Belle can fix it before it ruins Rarity's reputation and career.