Flat Fat

When a really obese people loses a ton of weight in a short amount of time, making their appearance seem pinched or unnaturally small

Damn dude, John's wife lost 300 lbs in a week! What a flat fat!

by Ding_Dong_Long_Schlong December 12, 2016

Flat Fart

A fart that is at the same level of noice the whole time

That dog just had a flat fart

by Iggy star September 13, 2017

Flat Milk

When the milk has been left out of the fridge for a prolonged period of time, so the milk is no longer cold and crisp.

"Can you put the milk back in the fridge, it's gone flat"

"Flat Milk is the worst"

by YaMother'sGash August 29, 2016

Flat Pussy

A pussy without any discernible lips whatsoever.

That chick has got flat boobs, flat ass, I bet she has flat pussy too.

by deimos-dread April 21, 2020

a flat emo

a cutting board

"hey what do you call a flat emo?"
"a cutting board"

by fvrgbthnrgfbdxbd June 4, 2022

flat four

A type of an engine configuration; there are four cylinders which are arranged in a flat opposing configuration. They're found in many different Subaru models (The Boxer Engine) and also found in classic VW Beetles.

Everyone panics & hides in their houses when it's snowing out, but not me, my world is flat; I grab my keys & head out to play in my flat four (4 banger)!

by Thorka June 20, 2016

E Flat

This ain’t what you want. I’m not the one. You WILL get your ass whooped trying me.

I ain’t no e flat

by blessed77 April 24, 2022