A rat that is so disgusting and fucked up.
1) Dude, don't you think that Paola is such a piss rat.

2) Paola: Bethany, why do you look so ill?

Bethany: I just fucked a piss rat.
by NaoFabio July 13, 2009
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piss rat: comes from the term urine vermin which was the name that the royal family called the sevents who worked in the dungeons. it was made more common in 1901 by sir p. Rick who lived on housing estate in selby.
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1. A person who is just incredibly disgusting and manky
2. A person who has drunk so much alcohol they have started to take on rat-like features and characteristics.
person 1: Annabel's such a piss rat!
person 2: I know right! ewww
by imnotatory January 13, 2020
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a scrawny blonde girl who wee's on herself self in a graveyard and has a smelly fanny
jh:who was that piss rat from the graveyard

dm: katie ether......
by jack ui January 29, 2009
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The last dregs of an assortment of (usually hard) liquors, all combined in one bottle to make enough booze to get properly drunk. it’s like cold duck but for hard liquors. Taste can range from okay to horrendous. An invention borne out of convenience so you don’t have to haul twenty almost-empty bottles to a DIY show. Also useful if you’re nicking booze from somebody and you don’t want them to notice, so you just take a tiny bit from each bottle.
Man, pass the rat piss, I drank through all the beer i brought.
by yllowyllow August 29, 2018
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