Taking The Piss

Given the British tendency to mock and satirise anything and everything possible, ‘taking the piss’ is in fact one of the most popular and widely-used British slang terms. To ‘take the piss’ means to mock something, parody something, or generally be sarcastic and derisive towards something.

• The guys on TV last night were taking the piss out of the government again.[Os caras na TV ontem a noite estavam tirando sarro do governo novamente.]

Fonte: Lifehack