Piss like a banshee 

when after holding a piss in for so long that when finally let go it causes you to let a blood curdling yell.

Dude, I have to piss like a banshee

Piss like a banshee by Redmanistan June 2, 2008

piss out my ass 

Another way to say diarrhea; you have such bad diarrhea that it is like water, and you can literally force it out, like piss.

Eating all that fried chicken made me piss out my ass.

I've been pissing out my ass for the past 24 hours.

piss out my ass by Paul_M_Mason November 12, 2007

piss flaps

the dangly flappy labia majora - the ones you need to pull apart to let the piss flow sweet

I tugged on me piss flaps and jetted out a stream of gold...

piss flaps by M.Powers April 12, 2006

piss up

australian my arse, it's british through and through, involving booze curry and kebabs, and vomit.

eee we had right good piss up last night, 15 pints with a curry, 15 pints in t'club and a kebab for afters, smashing

piss up by Anonymous March 4, 2003

piss fat 

The erection one has in the morning hours.

I woke up with the biggest piss fat this morning. My girlfriend thought she had excited me and decided to blow me. I think I accidently did a few wee drops in her mouth.

piss fat by Penis Master July 27, 2003

piss artist 

a person whos pre-occupation is to consume large quantities of alcohol on a regular basis,but who's body cant cope as well as an alcoholic's can, creating a distasteful, un-artwotrhy perfomance of drunken bliss.

"That boy's a real piss artist"

piss artist by Ryan Cairns September 18, 2003

Piss Wet Through 

When You Are completely soaking after being out in the rain.

man, its throwing it down, im piss wet through

Piss Wet Through by Jimmy4107 May 24, 2007