Flat up

When a bubbly liquid, like soda, goes flat

"I hate buying 2L bottles of coke, they always flat up quickly"

by philcagitz July 29, 2024

Flat Earther

Someone whose mother drank while pregnant, though it is also a possibility that they have suffered a blow to the head, causing mental retardation.

Person 1: Did you know that Jessica is a flat earther?
Person 2: Yeah, her mom should have never had that one sip...

by ranocchio May 5, 2023

Flat faced ugly

Endearing name given to the First Nations on the west coast of Canada.

He, look at all the flat faced uglies netting salmon on the river!
James joe, who is he again?
He lives on the Rez, he’s a flat faced ugly.

by Timmy-o-tool July 16, 2018

Flat three D

A flat that adores milly

Flat three d loves milky

by anonymous May 27, 2022

Flat Bro

One calls a person a "Flat Bro" if they believe that their intelect is limited.

He is a "Flat Bro" (Every Flat Bro ever)

by OilrubAinsley October 29, 2021

Flat-A

It's the word when you're a smart ass and you're just such a big piece of shit that you're just a fricken Albert Einstein Mofo.

It's not an A- or an A+ it's just a nice flat and juicy A

Dis dumbass mofo: Yo what'd u got on the test u nasal passage
Dis Smart ass mofo: Haha I got a Flat-A
Dis dumbass mofo: Wow, ur such a nasal passage.
Dis Smart ass mofo: Haha, at least I'm not a refurbished Amarjeet Fifa support.

by JuicyFatPigletSlayer February 5, 2018

Flat

Meaning flat out or being a fact good or bad

Isaac is a baller so he is flat at shooting.

When Tyler says something that is true Isaac responds with “that’s Flat”

by Isaac from OT February 4, 2019