Definition of tossers:
(n) :
(UK, Commonwealth, Ireland, slang, derogatory, vulgar) A person who masturbates.
(n) :
(UK, Commonwealth, Ireland, derogatory, offensive, slang) An objectionable person, often somewhat obnoxious in demeanour.
(n) :
One who tosses or throws something.
(n) :
(computing) A program that forwards or redirects messages on a bulletin board system.