Bristol flat

A pure Marijuana cigarette rolled then squashed flat to the roach with any heavy device close to hand compacting the Cannabis creating a perfect burn rate with no side burning.

"What are you doing....!"
"Don't worry I'm making a Bristol flat spliff"
"Wow that burns smooth, and no sideburn"
"I know..."

by ADDSTEAL February 8, 2013

Ikea Flat

The instance when a person who doesn't mean to be a dick becomes a bonafide dick.

You're acting like an ikea flat.

by specialtiesguru March 25, 2013

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 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 felicia

a flat bitch

she looks like a flat felicia

by flatfelica123 June 17, 2019

singing flat

Singing slightly off-note. When this happens in published work (e.g. YouTube videos, CD's, etc.) most of the audience doesn't even notice, but people with a strong sense of pitch (most notably, perfect pitch) can easily notice this.

"Mark made such an awesome cover, don't you agree?"
"What do you mean? He was singing flat the entire song."

by Gazotey October 7, 2017

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