I think you have left out the "er" as in "wanker".
Wanker is a pejorative term of British origin, common in Britain, Ireland, Australia, New Zealand, and South Africa, and gaining usage in Canada and the United States. It initially referred to "one who masturbates" but has since become a general insult. It is synonymous with tosser and toss-pot. In parts of the UK the word 'tosser' and its other forms have become so widespread that it isn't generally regarded as a swear word and is socially acceptable in general conversation.
