Nathan Grundy

Nathan Grundy is a skilled rocket league player, known for his plays in Bronze 1. His smartness is debatable, but all can agree that he is immature and 4"1

"Nathan Grundy is such a cool dude!"

by alfiesuggy October 20, 2022

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Grundy Thundy

When you bang a fat chick and your scrotom slaps against her thighs with a furious bang.

Will was going so ham on Mrs. Vincent that the Grundy Thundy could be heard from miles away.

by Gooch master December 23, 2013

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Grundies

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

My pregnant wife reached over and picked up a pair of her favorite grundies.

by SGreen5 May 21, 2021

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grundy pips

Small pieces of faecal matter found in grubby underpants.

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

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magnum grundy

This is the type of guy who would steal your glass of orange juice. He's just a dick. If you get to know him he can be very nice and will cherish you. The one he chooses to love will get all of his affection, they are pretty lucky to have a magnum grundy.

He's such a magnum grundy, he would be rude to you if he didn't know you.

by _asian.boi_ August 7, 2018

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