a person who do to much and dosent get any attention from it.
Commonly used to describe a girl with the tits of a 10 year old annorexic male. Can be referenced to as an acronym, meaning "Forever Lacking Any Titties".
Person 1: I gotta say, Emma's pretty hot, I think I'll go for it
Person 2: Are you joking?? She's as flat as the Great Plains!
Alternatively, with the acronym in place...
Person 1: I gotta say, Emma's pretty hot, I think I'll go for it
Person 2: Are you kidding me? She is, and will forever, be F.L.A.T
(The first instance is much more commonly used)
Bent word of approval with Northern Germanic roots. Shortened form of "flat out right."
Example...
Me: That man is a legend!
Him: That's flat, brother! That's flat.
Dude, when you said she was your one and only... that was flat!
Extremely boring, uninteresting, not worthy of being paid attention to.
Hey Molly did you get the notes for last weeks lecture? I didn't even bother, Ms. Smith's lectures are hella flat anyways.
if someone says you are flat, it means ur flat basically.
oinkawa dooru is a very well represented demonstration of this term referring to his FLAT ASS
guy 1; "ayO lOokiE hErE, ShE flat aSfFFFFf"
guy 2; "nah nah she built like a door deadass"
guy 3; " but she do be flat like thattttttt"