As far as I'm aware tosser has nothing to do with mastubation but comes from an old sailing term for a drunken idiot - 'he's a toss pot' - ie someone who drinks a lot is a tosser or toss pot.
by jane August 13, 2003
by Anonymous July 30, 2003
A chiefly British derogatory term, literally meaning "one who masturbates," but properly used to describe anyone who is either incompetent, supercilious, or otherwise generally unpleasant. Tosser is a British synonym to the primarily American derogatory term, jerkoff, which is also used in the same manner as wanker and tosser.
Joe Sixpack: I'm going to need you to come in for work on Christmas Eve, Christmas Day, and New Year's, all without overtime pay.
Jolly Roger: Don't be such a tosser. I'm going to the pub with my mates on those days!
Jolly Roger: Don't be such a tosser. I'm going to the pub with my mates on those days!
by FoxWing Mabon-Tail December 15, 2008
by International Bad Boy August 20, 2004
Shut up you tosser!
by 1inABillion April 05, 2015
Russian President Putin. Means a jerk off in American English. Also, British slang for male masturbation.
by Pink Partner September 08, 2013
by red_man May 29, 2014