look up any word, like sparkle pony:
 
15.
opa
used as a slang term for a retard
stop being such an opa hannah.
by filmer101 May 02, 2011
 
16.
Opa
something to say when you see a bellydancer at a restaurant; normally followed by the act of flinging loads of cash at her.
"I love this restaurant honey, it's so romantic...."

"only the best for you on our anniversary, WHOA, OPA OPA OPA!!!!!!!!, sorry honey, I got distracted, where was I?"
 
17.
OPA
one party animal; used as a greeting to call the Army of Skanks
When a skank sees a fellow skank respond with "OPA".
by KKKKCCSSJD March 26, 2007
 
18.
opa
yo those sneakers is hot. OPA!
by amanda August 17, 2003
 
19.
opa
Swedish Counter-Strike clan founded in 2001
by SpinTac October 12, 2003