Say-o

When you type you have a typo, and when you speak and make a mistake you have a sayo.

I was speaking and had a say-o cause I messed up and my wording

O on the Go

Getting an orgasm while traveling. Generally one person is driving while reaching over to finger fuck the other, but any act of O-ing while traveling would be considered an O on the Go.

"On the way to the airport I want an O on the Go. ::Insert antsy wiggling around/touching self:: "

GNARKiLL o

This is a kid who plays gamebattles and is top 1 in runescape ladder.

Got the 2009 trophy for runescape clan games

GNARKiLL o plays runescape

All-O

When you are all that. A person or creature in possession of substantial "dat" levels.

"You showed the magnamalo that he not All-O."

Big O

The face of suprise somebody makes when you abruptly shove something into their anus.

When I shoved my penis into her ass, she did a Big O.

K-O

1. When you knock someone out.

2. When u're knocked out

1. The K-O (knock-out) of Badr Hari was wonderfull!

2. Im totally K-O

ey o

Extremely tuff. A phrase used to indicate excitement, and in some cases "gaiety".
Also, unbelievably surprising; used to indicate content, satisfaction, astonishment, and of course, GAIETY

C - "Yo i jus got laid man!"
F & J (collectively) - "Ey O!!!"
C - "Amazing aint it?"
J - "what? we was referrin to that bundle of ghoood stuff jus passin by!"