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1.
The term "flat out" means: completely, definitely or clearly.
I am flat out broke.
She is flat out gorgeous!
He is a flat out geek.
by Cheryl_B April 03, 2009
 
2.
Colin McRae "if in doubt flat out"
if you are not sure what is after next corner, all you have to do is put your feet on acceleration to the floor ... flat out
by wrx April 16, 2009
 
3.
Australian slang term for being extremely busy.

Derives from the phrase 'flat out, like a lizard drinking'.
I'm buggered, mate; I've been flat out from dawn til dusk.

I can't take on another project, I'm flat out.

by zezebelle April 05, 2009
 
4.
Pushing your car to its maximum speed.
Jeremy Clarkson: "Flat out, you'll be going 190."
by SargeH April 03, 2009
 
5.
The extreme or extreme lack of something.
person 1: You going to the game tonight?
person 2: No, I'm flat out of steam.

guy 1: Did hear that chick fart?
guy 2: Yea, and now shes flat out gone.
guy 1: <sniff> <sniff>
by hashref April 03, 2009
 
6.
MEanz someone that is fresh, or something that person may be wearing is dope. Its more thangs to it also, but thats the main definition. Or means that something is just so dumb like "UR flatout creepy" thats on also.
Like for example: Christopher shirt is so FLATOUT
by alexus walker November 15, 2007
 
7.
u fresh from head to toe
Wunmi: Im goin to be flatout at the go-go tomorrow
Destiny: me too.....cuz these niggasz are goin to be watchin
by Wunmi October 14, 2007