To Yoink is to jack off a guy.

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.

A phrase appearing often in "The Simpsons" televison program used to verbally indicate one has taken something from another and fled.

the legal way to steal. Only requires that you say the word "Yoink" and then take desired object.

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.

Often used in conjunction with gank , the word 'Yoink' confers legitimate ownership of the 'ganked' item to the one who exclaimed 'Yoink!'

Said while taking something from someone in front of their face.

Also the sound effect made while stealing

A word to describe the act of stealing something. First used online in social networks sites by COK™ in the act of thieving hugs and kisses. The expression quickly made it's way to the real world where popular television series like 'The Simpsons' shamelessly copied the saying and claimed to invent it themselves.