2 dumbbells up 

An excellent rating in a bodybuilding context; the equivalent of 2 thumbs up in a movie rating context

Your abs are showing great definition- 2 dumbbells up!

2 dumbbells up by hochspeyer March 27, 2011

Dumbell boy 

A guy in a relationship who keeps dealing with a woman's baggage.

He's just being a dumbell boy until he gets into her room.

Dumbell boy by Summerbees June 8, 2012

dumbbell 

having no knowledge or purpose, doesn't contribute much of work.

"You never seem to be useful, just a dumbbell in our thesis group!"
"You're a dumbbell!"

dumbbell by LinkedIdea February 29, 2020

Dumbbell 

Dumbbell is called when a person that you're partnered is dumb and possibly weighting down on your project

Normally used in Group School Projects and etc.

The person i'm partnered with doesn't even help me at the project and makes it harder for me, they're such a Dumbbell

Dumbbell by HotgiggityDog May 11, 2022

Dumbbell Hogger 

The douchebags in the gym who hog multiple sets of dumbbells without racking them up for long periods of time.

Swole guy 1: "yo that douche has two 55's, two 60's, and two 65's. How am I gonna do my incline press"
Swole guy 2: "What a fucking dumbbell hogger"
Swole guy 3: "Fuck this, I'm doing crossfit."

Dumbbell Hogger by Football, money and ladies October 21, 2016

Dumbelle 

A term used to describe a pretty girl who often makes dumb remarks.

Said girl is often found on the arm of a muscley hetero.

I didnt have time to go to the gym today. Instead i'm gonna go home to pump my dumbelle and hope that she doesn't talk too much shit.

Dumbelle by martini attack September 5, 2009

Human Dumbell

A position utilized by homosexuals in athletic settings in which a person with power (coach, manager, etc.) inserts one end of a piece of athletic equipment, such as a baseball bat, into his anus and forces another member of the team or coaching staff to do the same with the other end.

John: You won't believe what Ted and Rob are doing in the locker room with your baseball bat!
Bo: Is coach doing a human dumbell without me?

Human Dumbell by TheRealFelixTheCat April 1, 2010