take the piss out of someone

to let the air out of their balloon, to mock/make fun of them. Customarily, shortened to just take the piss.
From the movie Snatch:

"take the piss out of someone" is abbreviated to "take the piss"

Boris the Blade: (mutters vague insults at Tony)

Bullet Tooth Tony: Don't take the piss (i.e., out of me), Boris!

Boris: Fuck you!

Tony: (empties the magazine of his Desert Eagle .50 into Boris)
by Roberto y Maria August 19, 2011
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Making fun of someone or something, or kidding with someone about something.
You really won the lottery?

Naw, I'm just taking the piss.
by Mike October 04, 2003
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FUCK I HAVE TO TAKE A PISS

When you have to take a piss and you have to say it out loud. It mostly is said when your having sex It interrupts a crowd and makes some fucktards laugh
Bruce: JENNA FUCK I HAVE TO TAKE A PISS JENNA FUCK OFF
Jenna: WE CANT STOP JUST FUCKING HOLD IT
by Boomfuckalacka November 17, 2019
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taking out the piss

When a drunk person forgets how to English and tries to take the piss with his his drinking buddies
Joey stop taking out the piss
by PSUnited April 12, 2017
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(n.) An expression used to describe a task which is nearly impossible to do while avoiding its by-products or consequences.
You want to go to a strip club without spending a lot of cash? Man, that's like trying to take a shit without pissing.
by Dwebbie Appleton May 31, 2009
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taking a piss

hey dude, me and cali are taking a piss later tonight, wanna hang?”
by merebou June 15, 2020
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Taking a piss off the Hollywood sign either is protesting the perfection wanted of people or physically urinating off said sign.
Man:”I went and got a drink.”
Man 2: “Oh no.”
Man: “Yeah I ended up Taking a piss off the Hollywood sign.”
Man 2: “Protesting?”
Man: “No... literally.”
by Actually It Is *insert thing* September 17, 2019
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