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

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

luke grundy

A very small smart sexy man. Looks like dumbledore. Faps with his mum and his rabbits every night. He loves maths and milfs.

He is so sexy, he is such a luke grundy

by Bert69 June 11, 2022

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

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

Grundy

To be fried as fuck off that boof cart, or lords lettuce

"bro I'm grundy as fuck right now"
"bugga I'm grundy"

by boofhameds August 16, 2025

Rumple Grundy

When in a face down doggy style position. Place a foot on her face, and with you big toe, give her a slight fishhook.

Man one: How was your tinder date?
Man two: Great! She ended up face down ass up so I planted a foot and gave her a Rumple Grundy.

by BeaverCualking September 15, 2025