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.