Top definition
The act of stimulating one's grundle using slow, clockwise, circular motions. One doing so without disruption of their natrual breathing pattern becomes a professional, grunder.
Steve reveals his beetroot, shiney, Jewish nose and begins furiously grunding Atilla whilst plundging his throbbing licker into his copper badge.
by Rupert Forsyth February 27, 2007
Get the mug
Get a grunding mug for your dog Zora.