n. Large breasts. A Japanese slang term adapted from a transliteration of the term "boing" which, as we all know, is what good breasts do.
Dave: So much ii boin here at this anime convention, amirite Steve?
Steve: The only "boin" I see is attached to fat dudes, you blind weeaboo. Get some damn megane already.
Steve: The only "boin" I see is attached to fat dudes, you blind weeaboo. Get some damn megane already.
by Estrella Muerta October 18, 2008
by MichaelAFS_2022 August 25, 2019
by Uncleboozer August 23, 2019
Synonym for "Normie." Used to describe them, considering saying "Normie" is now a thing that normies, or rather, boins, now do.
by Confetti-Throwing Puppet July 29, 2018
-verb (used with or without object) to engage in the act of sexual intercourse or the conglomeration of two separate genitals. Commonly used to replace the f word so children who shouldnt be hearing the f word due to their young/virgin ears wont be corrupted. Usually spoken by realists.
Ex1: Danny, are u going to boin the "silly rabbit" tonight or not because if you need a ride to her house I will be off work at Bravo at 7.
by verbatim4ever March 30, 2010
when you are burnt really bad and the only way to discribe it is boined. when you are boined you are fucked up
by LIL RED April 18, 2006
by Smoerly May 6, 2018