look up any word, like hipster:
 
15.
big o- rona's way of showing that his insanity can be expoenitally increased by not only knowing fans of the popular anime, but watching the show FLCL multiple times for it was origonally introduced to me by a big o fan.
no example
by Roan Dachmeth June 12, 2004
 
16.
a.k.a. Opium
u do the big O today? u're all funny

many chinx were doin the big O back in the 19th century.
by big O November 26, 2003
 
17.
Overstock.com an internet shopping website
Dirt cheap prices
by X April 29, 2004
 
18.
The awesomest man to walk the earth(Oliver), this term has become his title, and legend, after bringing pleasure to many women.
Who fucked her? Big O nailed that biatch!
by AllofHer March 19, 2004
 
19.
An Oscar (fish) with a rotting or decaying face. The face usually looks like it has holes in it. The fish often trys to ram his head into the glass of a fish tank in an attempt to glomp in your dufflebag.
"Did you see the Big-O last night? I nearly gaggled myself."
by Jennifer May 13, 2004
 
20.
Slang for Oklahoma.
I'm a cracker from Big O.
by Stanley Q. Brick June 15, 2003