that one guy in the back of the class who's hair looks like a bird nest and always has sweaty ass hands
girl 1: that guy in the back of the class just called me a slut
girl 2: dw hes a crusty musty dusty sewer rat
girl 2: dw hes a crusty musty dusty sewer rat
by ahaha_slay_yee November 8, 2022
Get the crusty musty dustymug. A common roast mostly used in the Roblox Community. Also used a lot in the common trope 'Roblox Story But the Main Character has a brain'. Also can be extended with other words that rhyme like Ugly, Disgusting, Rusty, and more
by urbandici September 28, 2023
Get the Musty Crusty Dustymug. by Professor Dusty June 13, 2022
Get the Dusty Musty Crustymug.