1 definition by Chris the gr8 666
the pooey mess left behind in the anal hair if an anus is not wiped with enough care is called gruffnut.
Glen recieved lots of gruffnut when he went for a poo and didnt wipe afterwards. This caused a discusting mess to be left in his anal hair over the anal region and his undergarments.
by Chris the gr8 666 January 17, 2006