Colin, having terrible flatulence as well as hygiene was not surprised to find that the frequent release of vaporised turd into his pants had formed into grundy pips. A more polite way of saying "I've followed through and lightly shit myself".
by Spoopleman April 16, 2017

A term used to describe grandma's underwear, maternal underwear or underwear that is largely deemed "unsexy" and "comfortable".
by SGreen5 May 21, 2021

by skaryb March 19, 2023

I thought I was going to make it home and take a shit, but I stopped and dropped a mean grundie right on the side of the road.
by Rickastley333 October 20, 2021
