Corner wanker

1) A person who gives off perverted vibes but are too socially awkward to actually perform any sexual act.

2) A person who stands on the edge of a conversation, occasionally joining in however they never fully contribute to the conversation.
3) A person that gives the impression that they would stand and watch sexual intercourse whilst wanking silently in the corner.

“Omg Alex is such a corner wanker, all he does is stare at girls boobs but he’s never actually had a conversation with anyone”