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

Flathead

A derogatory term for a believer in the flat-earth “theory”

Why don’t those flatheads find the edge of the planet and jump off of it?

by KyleMerovin December 22, 2017

flat stanley

A flattened boy fluttering in the wind on a string being lead along

Russel Hantz is the greatest flat stanley of allllll time

by thenavneet January 4, 2018

flat as paper

When a girl has no boobs and is the same chest shape as paper
__________________________(girl)
__________________________(Paper)

Have you seen that girl Jamie's she's legit flat as paper

by I'm poppy May 1, 2018

flatfish

a fish who is hammered with a hammer to flat it down
its squeeshed to death

i totally flatfished that fish

by UnusedSperm January 12, 2018

Flat

When the roast is so good it makes someone die (flatline)

“Bro, Joshua gave Derek a flat yesterday at the roast session!”
“Damn, I wish I was there.”

by 902Cold May 4, 2018

Flat-A

It's a word to describe an A student who is a smartass who is arrogant and thinks he's smarter than AlbertEinstein and thinks his IQ is 3.141592653589793238462643383279502884197169399375105820974944592307816406286 quintillion.

Guy: What did you get on the AA2 test with MANDEEP Kumar you Nasal Passage
Tareq: A Flat-A
Guy: Go kill yourself you aeronautical Nasal engineer

by Nasal Passage February 5, 2018