A person of low intelligence/ a highly stupid individual. Popularised by 13 year olds in the video game Fortnite. Also a direct translation for 'knob-head' or 'idiot.'
Person 1: Ah I hate that Tom guy so much!
Person 2: I know right - he's such a wobhead!
someone who is really into any intense form of electronic music, mainly dubstep; usually a person at one of these concerts who's constantly "wompin out" once that sick-ass bass hits the floor