a piece of piss

piece of piss

vulgar slang A very easy task or accomplishment. Primarily heard in UK. I thought I was going to fail the test, but it turned out to be a piece of piss! It should be a piece of piss getting this old car working again.
See also: of, piece, piss
Farlex Dictionary of Idioms.

a piece of piss

BRITISH, INFORMAL, VERY RUDE
If something is a piece of piss, it is very easy to do. People think touring is difficult, but really, it's a piece of piss. Note: `Piss' is a slang word for urine.
See also: of, piece, piss
Collins COBUILD Idioms Dictionary, 3rd ed.

a piece of piss

a very easy thing to do. British
See also: of, piece, piss
Farlex Partner Idioms Dictionary
See also:
  • piece of piss
  • a piece of cake
  • piss up
  • piss-up
  • be (out) on the piss
  • be on the piss
  • take a piss
  • piss on (someone's) chips
  • piss on (someone's) bonfire
  • take the piss out of