Tosser

[PussyCat]

Useless, pathetic, incapable of doing anything right

[Couch Potatoe]

ok, heres 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.

[Mark Zuckerberg]

another way to say [wanker].

[Little_Girl]

As far as Im aware tosser has nothing to do with mastubation but comes from an old sailing term for a drunken idiot - hes a toss pot - ie someone who drinks a lot is a tosser or toss pot.

[Couch Potatoe]

Noun, British slang; slightly offensive term: dick head, jerk, idiot, bit slow and rough, a non-violent bully, loud and rude not brightest bulb on the tree.
Verb, Toss off, British slang for male masturbation; not the same meaning as the noun Tosser.

[Sonia]

Russian President Putin. Means a jerk off in American English. Also, British slang for male masturbation.

[Justin Bieber]

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].

[PussyCat]

A polite way of calling somone a cunt, best used in mixed company or in front of your mother to avoid a clip around the ear hole.

[Kit]

A person or thing that tosses something.

[Michiko]

used as an [insult], calling [someone] a tosser is calling them an [absolute] retard