Flat

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 19, 2017

flat caking

A non sexual act involving skin-to-skin contact of two or more taint areas. Contact must produce a smacking sound.

I enjoy long walks on the beach, day trading and flat caking with my boys.

by Vladimir Trickington December 21, 2017

Flat-Stanely

(Noun) a man who only has sex with ladies with such tight poons his penis becomes flat. Ultimate goal

The man had sex with so many tight virgins he became flat-stanely.

by Bluebirdbeast September 28, 2017

Flat Far

Walking distance that is short enough to not warrant the use of flats in lieu of heels.

It's not flat far...

by hbat66 September 15, 2011

flat minor

It’s a woman ( or man ) under 18 who is not fully developed in the chest area.

Wow that’s a flat minor!

by readysethaction July 1, 2018

Flat Out

Very busy. From the Aussie idiom, "flat out like a lizard drinking".

I'd love to come over but I'm flat out!

by Luichoy August 1, 2016

Pound it Flat

Pounding it flat is the act of sex where the male takes authority and aggressively thrusts his penis into the vagina. Therefore pounding it flat would be a proper term.

"Kattie wanted it so bad that I decided to pound it flat"

by IETVTS2 July 18, 2014