by im so unknown September 8, 2016

The usual adductor muscles but used in a sexy way because "whatthefruits" had a brain freeze trying to remember a word.
by DummyThiccDontAskMe May 27, 2021

by TheMudMuscler December 2, 2024

by tommy_kingston January 14, 2016

User 1: Today at the gym, I worked out my muscle sand abs.
User 2: Muscle sand?
User 1: Oh I meant, muscles and abs
User 2: Don't worry, it happens to the best of us.
User 2: Muscle sand?
User 1: Oh I meant, muscles and abs
User 2: Don't worry, it happens to the best of us.
by zerosimp6969 June 9, 2021

When you like a girl and you have to check to make sure you have a 6 pack, big biceps, no double chin, and no pool float around your stomach.
Josh: Hey Kyle, don't you think that girl over there is hot?
Kyle: Before you do something stupid or bang something, why don't you do a muscle check?
Kyle: Before you do something stupid or bang something, why don't you do a muscle check?
by Logical World September 1, 2017

As in "To Be Determined". The excess fat, chunkyness, fluffyness, or plumpness on a person's body. Typically located in the midsection area of the human body blocking the abs.
Matt: Dude, you really need to start exercising.
Ricky: Yeah, I guess it's time to start figuring out what I'm gonna do with all this TBD muscle.
Ricky: Yeah, I guess it's time to start figuring out what I'm gonna do with all this TBD muscle.
by Breaston December 14, 2009
