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39.
To take rapidly.
Mark McGwire has used the word "yoink" on several occasions.
by Irish Lucas February 25, 2003
 
1.
An exclamation that, when uttered in conjunction with taking an object, immediately transfers ownership from the original owner to the person using the word regardless of previous property rights.
Though I cherished my automobile, I had to purchase a new one when my second cousin came up from behind me and politely exclaimed, "Yoink" while taking my car keys.
by Anonymous October 09, 2002
 
2.
A phrase appearing often in "The Simpsons" televison program used to verbally indicate one has taken something from another and fled.
"Hey, great science project, Lisa. Yoink!"
by kinsmed July 15, 2004
 
3.
the legal way to steal. Only requires that you say the word "Yoink" and then take desired object.
"Hey, that's a nice bottle of rum you've got there... 'YOINK!'"
by Brand August 31, 2003
 
4.
Onomatopoeia referencing a common cartoon sound effect played to enhance the action of an object being quickly stolen. The word obtained a more popular use after it's frequent utterance from Homer Simpson, the animated star of Fox's The Simpsons.

Word is spoken to make obvious or humorous the playful theft of an item in front of others.
You shouldn't leave your wallet lying around like that...Yoink!
by jedimasta July 21, 2005
 
5.
Said while taking something from someone in front of their face.

Also the sound effect made while stealing
Man1: Yoink
Man2: Hey, where did my food go?
by Uglysad April 01, 2005
 
6.
Often used in conjunction with gank , the word 'Yoink' confers legitimate ownership of the 'ganked' item to the one who exclaimed 'Yoink!'
"Yoink! I have ganked your french fries!", exclaimed Bill.
"Damnation! They are now yours, regardless of my feelings!", declaimed Fred.
by Noodles February 19, 2003
 
7.
Word used in Daffy Duck's rendition of Robin Hood.
When Daffy is about to swing from a vine, he says, "Yoinks, and away!" Subsequently, he crashes into a series of trees as he's swinging and repeating "Yoinks and away" with each crash.
by Badtoodles November 03, 2009