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4.
a giant robot in the anime big O
guy:*looks at watch* BIG O! *robot appears*
by O_oo_O July 17, 2003
106 68
 
1.
an orgasm, usually intense.
"He got me to the big O last night.
by Starla Pureheart June 29, 2002
235 45
 
2.
Paradigm City is a place without a past. 40 years ago, something happened that wiped away the memories of everyone in it. Unfortunately, the people of Paradigm City were very busy before then, making Megadueses (giant robots) and monsters. People who were born after the memory wipe are gaining/recovering memories of the past and using them to build newer threats. Roger Smith keeps Paradigm City safe with the help of The Big O (a faithful giant robot), his butler Norman, and the android Dorothy. As problems mount and more memories surface, Roger's past and Paradigm's future begin to become suspect.
Big O aired in the U.S. on Toonami in 2001. There are a total of 26 episodes.
by Japanese Anime September 10, 2010
186 41
 
3.
super intense orgasm in which female ejaculate is released (not urine)... speculation puts phenomena at 1 out of 20 women able to achieve
Cheryl knew all about the Big O
by TXDOC March 28, 2006
124 53
 
5.

1. an orgasm, a sexual climax

2. opium
Once I reach the big O, there is no turning back.
by The Return Of Light Joker November 04, 2007
46 16
 
6.
Traditional polish dish that consists of sauerkaut, sausage & mushrooms. Mainly eaten with bread
Englishmen hate bigos, but for poles it's delicious
by Ozon January 05, 2006
18 10
 
7.
A notation used to denote the run-time of a given algorithm.
"So our lower bound here is O(n log n)."
"Nope. Got it in O(n log(log n))."
Elaine bested Donald Knuth at Big O Notation. So she left.
by Advanced Programmer April 22, 2009
25 22