Onehead 

when someones head is so small their eye brow line meets their hair line.

Gawd Damn... Fucking niggas forehead so small.. Its a onehead

Onehead by AdurpaDoo August 30, 2009

Onehead 

Since a fivehead is extra forehead on top of a forehead, a onehead is a quarter of a full forehead. A forehead that rests somewhere at or just above the eyebrows. If the one who has a onehead shaves their head and has protuding round ears, they look like a baby chimpanzee.

That guy has a onehead, not a forehead.

Onehead by Solid Mantis April 3, 2021

one head 

stooped

lmao u just threw ur keys in ur locked car u one head

one head by Sir Bebe April 26, 2021