Someone who you do not want to talk to or know, who looks creepy and annoying, e.g. greasy hair, thin whisp of a mustache, generally looks like they would stand by you and start talking to you about something normal people do not talk about.
variations: queeb, queeby, queebus maximus
Man, that queeb trout at blockbuster REALLY needs to start shaving his lip. All i could do was stare at it while he told me about star wars!