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1.
A person that is socially inept and yet full of themselves.

Someone whose only source of conversation is themselves and the things they get up to.

The word derives from the common word for masturbation and monkey, the animal that uses aggressive displays to prove their social status.
It occurred to me as I heard about Nikki's time as a stripper that she was a huge wank monkey.
by Alan-O September 13, 2007