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 24, 2013

Grundies

n. 1. Members of the Grundie Gang

n. 2. A pair of grandma underwear

The Grundie Gang is an electronic commune of like minded people who promote self love. The members of the Grundie Gang are known as "Grundies." Their logo is a pair of cotton "grandma" underwear because Grundies believe comfort is fashion and natural (non-synthetic) materials matter.

The Grundies started as American Twitch streamer, and musician, ReinaMystique's community name. Grundies enjoy good music, food, art, and culture.

The Grundies have a Discord and use the hashtag #grundiegang on all social media platforms.

I love hanging with the Grundies. They always have positive vibes.

by ReinbowBrite November 22, 2021

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

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

A man with a plan to give you a C! He is most well known for his war crimes during the Vietnam War Era.

He did a Grundy during World War II, what treachery!

by NotShortMan February 09, 2021

Grundy

Get active. Or get worked.

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

by skaryb March 19, 2023