grubster 

A person who will get the job done by ANY means. A grubster is tough, mean, and determined. The first time I heard the term, it was a nickname for a football linebacker at my highschool. His name was Bing which didn't sound very tough so his team mates called him grubster. He would hit guys so hard that the "pop" sound would echo through the stands. Twenty years later, everyone I know still uses the term. I even hear people I don't know use the term.

Don't dis that girl, her big brother is a grubster.

grubster by David S. D. May 2, 2006

Grubstep 

The grimeyest and most grubby of all the dubstep...

Skanking so hard you burn through the soles of your shoes..
Here's for you when it comes to grubstep

Grubstep by Akec July 8, 2012

Grabster 

A Graphic Designer and YouTuber that hates Neumorphism the same way people hate Hitler.

Is that a black & white shadow in one image? 'boutta tag Grabster just to torture him

Grabster by Funkryon May 6, 2020

grupster 

A parent or gardian who continues to express interest in pop culture, music, and/or fashion. Parents who refuse to grow-up just because they now have a child.

My punk rock mom is a grupster

grupster by Stephanie Fowler May 15, 2007

Gubster

when someone, especially people named bryan, are being complete douchebags and you need a creative insult

synonyms: douche, chach, asshole, anuspuss, and hardass

"gosh man, look at bryan showing up late, what a fucking gubster".

Gubster by tightgarbage January 22, 2011

Grumster 

“Grumster” ,Part of being a grummy unclean person(s),group or organization .This is in first person ;root word of Grummy :orgin

“Grumster “ You can tell that the Westside is turning into a Grumster community because grummy politicians.

Grumster by BigDeRob January 6, 2022

Gubby Gubster 

A short man, with an even shorter temper. He gets fair thick at very little, usually drives a shit car and has a small willy, 5 foot 2 inches and those are separate measurements. No fun whatsoever.

You're such a gubby gubster.
The gubby gubster is sulking outside again.
Gubby gubster is getting fair thick.

Gubby Gubster by Gubbohater May 11, 2022