ok, here's the true explanation:

while the word wanker is a more general and term for expressing disdain for somebody, the word tosser describes a person with a tendency to show off or brag in an excessive and embarrassing way.

or someone whose explanation of a word consists solely of another synonym.
"well at first i thought this guy delivers, but in the end he was just another tosser."

A asks: hey, what does tosser mean?
B answers: duh, it means: wanker.
A thinks: what a tosser.
B thinks: damn, i'm smart...

;-)
by klugscheisser July 2, 2007
Get the tosser mug.
English insult.
Implies that the person masturbates excessively. Also see Wanker.
by Danny Romer March 24, 2003
Get the tosser mug.
Literally, one who masturbates. Common usage typically refers to anyone of whom you have a low opinion.
eckham's a fuck-useless tosser.

Comment submitted with request to Delete: "I have copyrighted the word "Tosser" for my new adult entertainment film. Please remove it from your site or i will be forced to take legal action. May i suggest replacing it with the term "Wanker"."
by Anonymous March 18, 2003
Get the tosser mug.
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
Get the tosser mug.
used as an insult, calling someone a tosser is calling them 'an absolute retard'
Shut up you tosser!
by 1inABillion April 5, 2015
Get the tosser mug.
Russian President Putin. Means a jerk off in American English. Also, British slang for male masturbation.
"Putin really is a tosser." Henry Smith, MP
by Pink Partner September 8, 2013
Get the tosser mug.