Flatsum 

Something that’s “flat” and “sum” bullshit

Bruh that joke was flatsum

Flatsum by Bigboi99995 December 3, 2021

Flattumed 

Being coerced into staying out later than planned by another friend and drinking more than intended.

I was out for a quick Happy hour and I got Flattumed!

Flattumed by Knblum August 18, 2019

Flasumo 

It’s the right given to high school students, that says that if the don’t want to dance a certain style of dancing, they don’t to do it.

Teacher: you have to do it
Student: but I have flasumo
Teacher: oh, okay then

Flasumo by Anna Millen January 12, 2019

fatsuma 

a fat satsuma

that satsuma is the largest thing in your fruit bowl, lets name it fatsuma

fatsuma by sariceua September 20, 2003

Flattummed 

To be Coerced into staying out way too late and drinking massive amounts of alcohol.

Last night I got Flattummed

To be coerced into staying out way too late and drinking massive amounts of alcohol.

Flattummed by Knblum August 28, 2019

flattum 

straight up beast

Chuck Norris is a flattum

flattum by Joe Week December 22, 2010

flatsmacked 

When a flat earth conspiracy or conspiracy theorists get shut down with truth and evidence so hard the are embarrassed to even go outside.

Dude Chris got flatsmacked so hard he deleted his TikTok!

flatsmacked by ADHD_Projects July 6, 2023