A fork of Rural Dictionary
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.
Synonymous with "to burn", used only when implying the use of marijuana.
Who wants wants to "boin" (some sweet nuggets)?
Synonym for "Normie." Used to describe them, considering saying "Normie" is now a thing that normies, or rather, boins, now do.