A condom which you often use when having sexual intercourse
' have you got a flat peak '
' no have you '
by Kaytiie March 9, 2008
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Your buttcheeks are so spread apart that your ass hole flat
by Magsw13 February 14, 2019
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a person who do to much and dosent get any attention from it.
you act so flat.omg
by americaslay1010 March 19, 2018
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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)
by E.M.V.J.J December 18, 2017
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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!
by Kenny Bents December 16, 2018
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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.
by queeritating February 27, 2020
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