Jackie O

Jackie O, short for Jackie O'nASSis short for jack ass

Someone cuts you off on the road, you yell "watch it Jackie O"

Four-O

1.The best place in the world
2.A great Party
3.Somewhere you go when you turn 40
4.An awesome person

1. I went to the Four-O of Four-O's

2.I went to a sweet Four-O

3. my wife turned 40 so we brought her to the Four-O

4. That dude is a Four-0

o sea

this is in spanish meaning "like...really"

tienes el mas bajo grado? (you have the worst grade?)

ai no manches guye, o sea no so naca (yo stop fucking dude like really im not dumb)

O bomb

An extreme orgasm leading to exhaustion; usually obtained during and orgy

Kate: Is dude wasted he's knocked out
Lewis: No he just had an O bomb

Uno Duo Three-O Four-O Five-O

A phrase that is common to Computer Science teachers. Typically the phrases that are emitted from the mouths of these teachers are mildly retarded and may be repeated more than ten times a day.

Mr. Biga - "Uno Duo Three-O Four-O Five-O!"
Student - "What the fuck?"

y/o

Dual conjunction to replace the term "and/or".

Etymology: Spanish origin.

Your heart is black y/o shriveled.

Conch(o)

A word that means your gullible because you probably thought this word meant something more offensive.

"You're such a Conch(o)!"