o shit 

term used when a person comes to accept that he/she is thoughrly screwed

Kid 1: Dude, you just knocked up Mike Tyson's daughter!

Kid 2: O Shit..... that sucks.

o shit by Tom has no names left November 8, 2008

O.B.S 

Open Bum Smell

he smells like he has got O.B.S, dirty boy!

O.B.S by Floydsta July 6, 2011

O.G 

o.G is short fo Original Gangstao.g

1:look at that o.g aint no 1 cop shit from her
2:i heard she waz an o.g. cuz of her killin a wansta and took his whip to.
1:damn homie u bets ta not get in her wayz then

O.G by Jennifer July 24, 2004

O-Nazz 

O-Nazz: O-nazz is a word not very many know it is a word meaning of a strong sexy and smart guy with a giant fatty cock that can not fit in ur mouth even if u ripped it open.O-nazz can also eat a chick out in so many ways

Hey Nancy guess what i had an O-Nazz last night he was soooo amazing omfg like the things he can do with his tongue omfg i wanted to just stick his whole head up my vagg.

O-Nazz by Ohmanomid May 9, 2008

O Brian 

Irish term that a woman (or man in special cases) says when they are having sex with a man named Brian.

Woman/Man: Harder!
Brian: UMPH!
Woman/Man: O Brian!(Irish accent)

O Brian by asdklfj! March 25, 2009

o_O 

o_o
o_O
O_o'
O_O
0_0
()_();
_
{}_{}
u_u
>_>
<_<
^_^
v_v
ò_ó
ó_ò
ò_o
o_ò
ò_o
ó_o
o_ó
ô_o
o_ô
ô_ô
ô_0
o_ o
o _o
o___________o
O_______________________ò
o&#713;o
()_0
0_O

etc etc

used to express emotions in irc in a l33t manner

#see l33t#

w3rd_d00dx0r: rofl my sister looks at donkey pr0n
n00b: o_O' *sweatdrop*

o_O by 0_owaffleo_0 June 24, 2003

O.D.P. 

O.D.P. is the abbreviation for an Old Dirty Perv. Aka a male cougar.

Beth: "That O.D.P. lurking in the corner just bought us a drink. Sick!"

Why don't O.D.P.'s realize that all they will end up either being a gigilo to an ailing cheetah or get fleeced by a G.D.P. (gold digging puma)?

O.D.P. by Doug and Beth August 12, 2007