Borrowed from Dutch smurf (“smurf”), (via the Belgian comic De Smurfen, a translation of French Les Schtroumpfs), from French Schtroumpf (“smurf”). The word "schtroumpf" is a fantasy word that was made up by Peyo. Armand van Raalte was an employee for the Belgian publisher of Peyo's stories. He felt that "schtroumpf" sounded too much like German and would not catch on in The Netherlands, so he tried to find a simple word that could be used both as a noun and a verb. The result was smurf. 
smurf (plural smurfs)
- (fictional character) A blue pixie with white stocking cap, from the media franchise The Smurfs.
- (Internet slang) A smurf account.
- (computing, security) A smurf attack.
- (banking) To structure a deposit; to split a large financial transaction into smaller ones so as to avoid scrutiny.
- (computing, transitive) To carry out a smurf attack against.
smurf m (plural smurfs)
- a sort of breakdancing