Taking the piss

To make someone who's trying to seem important less important. Derives from the piss-boner men wake up with in the morning, it's a fake boner. If you took the piss away, there would be no boner. Do you see?

That's the original meaning, however taking the piss now means just giving someone a ribbing and in the most part not meaning to be malicious.
Original meaning:

Guy 1: "Hey guys, what do you think to my awesome new haircut?"

Guy 2: "I think you look like a fucking prick, mate...you look like a real slob".

Other guys: "Haha, Guy 2 really took the piss out of guy 1!"

Meaning as it is now:

Guy 1: "Man, I only got a 45 on my last assignment"

Guy 2: "Haha that's fucking shit!"

Guy 1: "Don't be so mean"

Guy 2: "Cheer up man, I was only taking the piss"
by L-Shizzle December 13, 2007
mugGet the Taking the pissmug.

take the piss

To greedily demand an unreasonable effort or price.

British/Australian origins.
"My physics prof makes us go to 2 labs a week, and half the time we just end up using them to help him mark papers. He really takes the piss."
by Eversion April 15, 2005
mugGet the take the pissmug.

taking the piss

vb. Medical.

When one is asked to provide a urine sample at a hospital, clinic or doctor's surgery, one hands the jar to a nurse who is said to 'take the piss'.
I had to go to the clinic and the nurse took the piss out of me
by Ben Dover of the Yard September 04, 2004
mugGet the taking the pissmug.

Take a piss

When a person (or group of people) is pissed off and they need to “take a piss” to get it out of their system.
You were a dickhead and now your best friend Is mad at you..

“Larry, you dickhead!”

“Alright, Ron, take a piss and calm down”

Or

In a heated situation in which everyone is angry ...

Everyone take a piss and let’s resolve this.”
by greenpoopyfrootloopy123 May 04, 2019
mugGet the Take a pissmug.

are you taking the piss

It's is a British term that people often use to say 'are you joking' or 'are you serious'. 'Piss' means 'urine'. Someone who takes the piss a lot is often called a 'piss take' since they 'take the piss'.
A:sorry I ain't got your money today mate

B: are you taking the piss!?
by Light skin goddess January 19, 2018
mugGet the are you taking the pissmug.

You're taking a piss

Phrase used when expressing shock or confusion, as if saying "you're lying!" or "you can't be serious" or "i don't believe you!" in a positive way.
A: "i just got engaged!"
B: "stop! you're taking a piss!"

or

A: "i just got robbed"
B:"you're taking a damn piss, when did this happen??"
by Ru_ox May 14, 2023
mugGet the You're taking a pissmug.