A house or place you are staying at.
(British term)
Will, are you coming to my flat tonight?
Cool-looking, sexy.
Friend1: See this new car I bought?
Friend2: Yeah bro it looks flat.
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.
Fat ass motherfucker. Preferably a security guard. Often resembling “Flats the Flounder” from SpongeBob squarepants
Oh shit it’s flats, we can’t throw shit anymore