Quote Originally Posted by Swifthom
Ahh, sorry, you don't recognise the term...
Taking the piss = taking the mickey = having a laugh = mucking around = talking rubbish = talking out of your ass = telling jokes...

And if you want another example of british humour just look to Hitch Hikers Guide to the galaxy, nothing like Little Britain but they started from the same place.
"So I tell the swamp donkey to sock it before I give her a trunky in the tradesman's entrance and have her lick me yardballs!"
Completely different level...