A sad, lonely man with no friends, they are bad at making decisions and cannot give you a straight answer. A short term plesaer who never makes an effort. A rather unsightly character with not many redeeming features.
sam - "are you coming to the pub tonight, mate?"
Wes - "nah mate, im gonna stay at home."
Sam - "Why"
Wes - "just got some shit to do."
Sam "for fucks sake Wes, stop being such a Jarv"