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

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

Grundied

The act of telling someone that an early access code that is not available.

i.e “Hey Rick, I don’t have an early access code. I think you have been grundied!”

by tacoinhell January 23, 2023

Grundy

That mustache that boys in middle school try to grow.

Wow, that boy over there has a cool grundy.
Nah man, my sister has a better one.

by Nickelmen January 24, 2019

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

Grundy

Get active. Or get worked.

"Get GRUNDY"
--"You just got grundified"

by skaryb March 19, 2023