Someone who is simultaneously breathing and an idiot (EX: you, probably). This noun can also be used to describe someone with infectious stupidity (that is breathing). This word sounds stupid (which it is), but you never know if the person you use it on will be alive the next moment.
(sometimes confused with "oxymoron," which is different I swear).
Onnie x Oxy is a odd relationship but is one of the most loved. A tale of a Fox and a Shark that hate each other but love each other and will do anything for each other. Although they might not see it and deny it in reality they just might be the ones for each other.