to have to piss taken from, to be disrespected, unfairly treated etc.

Referring to women who are sexually or romantically attracted to other women. Applies to both lesbians and bisexual women, as it is only the same-sex attraction that matters, not any other attractions the women may have.

Originates from the Greek poet Sappho, a bisexual woman from the Isle of Lesbos, from which we get the term lesbian.

to have someone take the piss out of you- and treat you like a mug. a suitable way to treat a chavor anyone from basildon

This is a term derived from the commonly known insult 'mug'; meaning someone who has been treated like an idiot, or been severely nieve.
If you have been 'mugged off' someone has clearly made you into a 'mug', hence you have been insulted deeply. A 'mugging off' often deserves a swift backhand across the perpetrator's derriere.

When someone disrespects you, and causes offence by insulting you, how you act, or your style. sometimes when your posesions are mugged off. Can result in you cutting them first if mugged off infront of ones pals. (being mugged off infront of your pals is 10 times as bad, as it makes you look like a mug)

for reference watch football factory.