A meathead can be anyone of combo of the following things:
1. Someone who is muscular and slower in the brain.
2. Someone who marinates their head in sauce.
3. Someone who likes to put their heads in a
grill of some kind (
Ex. Barbeque, George Forman
Grill, ect.)
4. Someone who is a complete fucking idiot.
A: Yo look at that guy, he's
jacked!
B: Ya, but he's a fucking meathead though.
A: Why is that
idiot grilling his own head?
B: Probably cause he's a fucking meathead.