When someone has either smoked marijuana to the point where they feel deflated and the possibility of physical activity is out of the question
OR.
When the weeds rank of dank makes you that way. The name comes from the above the influence commercial called "flat".
Other symptoms of being flat include being anti-social
That weed made Emily so flat yesterday, she couldnt evenmove her arms
The conclusion one comes to when looking at a women's body and her butt or chest is flat. The difference is told by saying if the front or back is flat.
We saw these sexygirls walking down the street. I wanted to talk to them, but then I saw they were too flat in the back.
2) What one might call a girl's chest if she has a little cup size or no boobs at all.
3) A word that is not veiwed as offensive or foul, but can be substituted for any words that are offensive or foul.
1) Charles Ingalls: The prairies are so flat. Myabe I'll build a house here.
2) Drew: Dude, Amy is so flat.
Nick: She's only three years old...
3) Paul: Flat! What the flat is going on here?!
Marie: Just shut the flat up! You would never flatting understand anyway!
Joe: Flat you marie! You flatting flat! I never want to flatting see your flatting face ever flatting again!