something you say when you're too lazy to say "Ok".
Brandon: You are a stupid asian.
Ping: oa.
In switzerland there's a famous rap-group called oa.
Somehow they managed it to make people say oa instead of awesome, fresh, good, cool etc.
so when you get to switzerland make sure, to know the meanings of "oa". (adjektive)
Man those guys look good, they look so oa!
Don't act oa, we know you're no good.
object of avoidence, namely some creepy gross person who likes you
stephan is the new oa..hes totally following sarah everywhere
short for “objection: argumentative” \ generally used to avoid or nullify a negative question or remark
Whenever his ex asks him a question, he infuriates her by answering with OA.
The Filipino abbreviation for Over Acting. This term is usually used to describe a person who is basically a drama queen. Also implies immaturity.
She threw a fit in the store because they didn't have her size. She is so OA.