Top Definition
A hemorrhoid that "migrates" from your butthole to your grundle and/or nutsack; often very painful.
Dude, I thought I sat on one of my balls but I totally sat on a grundloid." "Ouch, F-Dawg, are you going to have it lanced?" "No way, man, my wife likes the cherry tomato when tossing my salad!
by fdizzy April 28, 2011
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