piss

• urine, pee, liquid excrement (slang)
urinate, pee (slang); anger, irritate (slang)
to piss means to urinate; an informal or rude word which some people find offensive.
if someone has a piss, they urinate; an informal or rude word which some people find offensive.
piss is urine; an informal or rude word which some people find offensive.
see also pissed.
if it is pissing down, it is raining hard; an informal or rude expression which some people find offensive.
if someone tells a person to piss off, they are telling the person to go away; a rude and offensive expression which you should avoid using.
if someone is pissed off with something or someone, they feel bored and irritated by them; an informal or rude expression which some people find offensive.