1 definition by theend956614756

grundy

The act of giving sombody a wedgie after putting sand down their pants or shorts.

The lifeguard gave me a grundy when I bumped into him on accident. I was chaffing for weeks on end, with nothing but pain to look forward to until i went to the doctors for melvin wedgie and grundy reconstructive surgery.

by theend956614756 April 27, 2010