Sloping forehead

One who is of low intelligence, ignorant, agro and behaves like a caveman.

What a sloping forehead, he probably goes swimming with all his clothes on.

Jaked up

When consuming large amounts of cocaine or any other type of stimulant, and behaving in a annoying, obnoxious, manner.

Man, dude did a bunch of bumps at the party last night and was all Jaked up. He was getting on my last nerve for real.