four five

Forty Five caliber pistol, generally the largest caliber (and therefore potentially the most deadly) available in the US.

Man, you hear Fitty Cent got shot 9 times with a four five? He lucky he still walkin!

by JMKinMich March 11, 2008

four-five

When someone gives your fourhead a high five.. they Slap you really hard on the head they yell four-five

Person one: Yo high five mayne..
Unsespecting victim: Yeah Boy

**Person one: Slaps vcitims head and yells FOUR-FIVE BITCH
Victim begins to cry and walks away

by Mary June 15, 2006

four-five

When someone gives your fourhead a high five.. they Slap you really hard on the head they yell four-five

Person one: Yo high five mayne..
Unsespecting victim: Yeah Boy

**Person one: Slaps vcitims head and yells FOUR-FIVE BITCH
Victim begins to cry and walks away

by Mary B June 19, 2006

Three Four Five

To drink 3/4 of a fifth.

David: Bro, how much did you drink last night!?
Troy: Dude, I pulled off a three four five.
David: Your were shit faced.
Troy: Fuckk.

by Dwood93 June 26, 2011

four five six

The SFW version of "For Fuck's Sake"

Boss: Jim, the deadline for the Jenkin's report has been moved up to Tuesday.

You: Ah, four five six!

Boss: What?

by Douche Toilette August 17, 2008

four-five-nine(ing)

To eavesdrop on someones conversation. Usually with the intention of taking the information for their own benefit. Comes from Penal Code 459 which concerns burglary and theft.

(on the phone) I'll tell you where to meet later. Right now my little brother's four-five-nine(ing)me.

by rob abbate August 16, 2007

Five-Four

A combination of a normal slap, proceeded by a backhand.
can either be done with singular strokes of each type of slap, or a multiple procession of both actions, back and forth.

hey! come back here, or I'm about to give you the five-four!
(grabs)
*slap slap slap*

by GNK June 10, 2009