What is Take The Piss?
1.
to mock someone
"He's taking the piss out of you"
See
2.
To rile, mock, or be a jerk to another person whether or not the person is joking or being serious.
I know what I am so don't take the piss.
Don't worry about him hes just taking the piss.
3.
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."
