Boin means: Synonym for “Normie.” These words are used to describe them. (in Community Dictionary, added by Damián Garrido)

What else does Boin mean?

  • Verb used to have sexual intercourse with another person or conglomerate two separate genitals. Commonly replaced the f-word so that young virgins who aren’t supposed to hear the word won’t get it corrupted. This is usually spoken by realists. (in Community Dictionary, added by Probo Soler)
  • N. Large breasts. Japanese slang term that is derived from the transliteration “boing”, which, as you all know, refers to what breasts are good at. (in Community Dictionary, added by Britches)