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taking the piss aka taking the mickey - to ridicule someone. i.e. if you speak sarcastically to someone, or mimick them, they might say "are you taking the piss?"
I think you must mean "piss into the wind" and it means to do something without thinking ahead to its consequences.
I think it just means to go to the toilet though there could be something else it refers to. "To take a piss" means "to urinate", or "to go the toilet". On the other hand, "to take the piss" means "to ridicule" or "to tease in a derisive manner". Thus, in a pub: to say "Excuse me, I have to take a piss" should lead to no altercation. But "Are you taking the piss" just might.
PISS DRUNX, crew name for Baker skateboards.
The homophone for "piss" is "piste".
piss off piss off
'a slash' is an English term to mean urinate. eg. 'I am going for a slash' = 'I am going to piss/urinate/take a leak etc...
Dandelions are sometimes called 'piss a beds' or 'piss the beds' because they contain a diuretic chemical which, if eaten, can cause a person to urinate.
Piss Up a Rope was created in 1996.
Piss Factory was created on 1974-06-05.
The Bear Grylls Piss Drinking Society