A quick-witted, thick-skinned individual who believes in speaking the truth at all times. Sometimes at the risk of hurting a person's feelings. Slumheads are usually incredibly funny, and don't pass up the opportunity to engage in heated debates. Often times leaving their NON-Slumhead opponents angry and distraught.
1: the state of having excessive slog in your head 2: being inept, foolish, moronic, or existing in any other state of little to no intellegence
3: general insult
A: Well your mom's a slut!
B: Well you're a sloghead!
A: oh damn, I got boned
B: yes you did, yes you did.