Flat Head 

a derogatory term for a German American from southern Indiana, particularly from the town of Jasper, Indiana.

I wonder how much beer those flat heads in Jasper will drink this year at their Strassenfest?

Flat Head by Kraut Stain March 2, 2010

Flat Head 

Slang for a mentally retarded person. Just like the word "retard" it can be used to call someone stupid that may not be mentally retarded.

Dude, sorry I messed up. I am such a flat head.

Flat Head by Brettus March 26, 2008

Flat Head 

When Eli takes off his hat

(Eli takes off hat) HAHAHAHAHHAHHAHAAHHAHAHAHAHAHAHAH FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD FLAT HEAD

Flat Head by Sohoowusyourday>good February 8, 2022

Flat head 

When your banging a girl and you fuck her so hard she hits her head on the top of the bed.

Ross I gave my girl a flat head last nigh.

Flat head by Jeff wood August 5, 2017

Flat Head 

People who argue with established science, geography, space photography, eye witnesses even morons who know for a fact that the Earth is NOT FLAT!

My kid passed 12 years of basic education but somehow has decided the Earth is flat. I guess he is just a Flat Head.

Flat Head by The Repurposed Male January 6, 2024

marks.flat.af.head 

He is literally the coolest and swaggiest kpop stan. Like can you imagine not being moots with him. Anyone would give their souls to him but don’t even dare to steal him from his best friend okijaemin or she’ll 🔫 you

- have you heard marks.flat.af.head posted a new video?
- for real? I’m so excited he always post cool stuff like-
-ikr I would wanna marry him
-same

marks.flat.af.head by okijaemin July 16, 2021

flat-headed 

slow, not smart. Not stupid, just not quick on the uptake.

I closed in for a kiss, but ed was a bit flat-headed and failed to pick up my cue.

flat-headed by henrysfeelingfine January 5, 2007