look up any word, like donkey punch:
 
1.
1. Someone who repeatedly gets mad over jokes and not harmful content
1. Peter left the channel because he was being such an Onixo.
by Carlos Daunty July 10, 2008
 
2.
a freakin emo nerd who freaks about over everything
wow dan stop being an onixo and go fuck your hot sister
by brianthenigger June 29, 2008