bish means complete shit, which comes from a man called bill bish who lives in my town who had shit breath so altho bish means shit it come from the word smelly
the "unintentional" or intentional mis pronunciation of the word fish and or bitch, which then becomes a slang word for a prostitute, female dog, or bitchy person/ marine organism.
the little boy asked "Mommy can i have some bish, you know i love bish".
Something that is too rubbish to have a full word attached to it, so it becomes merely "bish". Can be combined with "minging" to create the rather beautiful binging
A Bish is several different things, it is a shortened abbreviation of the word Bitch, it is a small boy who has gay sex everynight, it is a greasy-haired midget who believes he can get any girl he wants, and fancies many gay men, it is some1 who cannot get laid so must rely heavily on masturbation, to ease the pain of sexual tension and a scheming little grease ball who thinks he is great at everything, and loves men, and loves attention.