a name you call people to annoy the shit out of them.
"you're a crusty musty"
"shut up"
"no, you shut up you crusty musty"

or

"stop picking your nose crusty musty"
by xx_Maryannslover_xx February 15, 2012
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Used to describe a person who showers twice a week , repeats the same garbage outfits, and doesn't brush their teeth at night. They also have warts on their bodies. Can be low-key sociopaths.
Jake Paul looks crusty, musty, n dusty.
Bryce Hall looks kinda crusty, musty, n dusty, but he could still get it 😼
by erika_xoxo November 03, 2020
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MCRD (Short For Musty Crusty Rusty Dusty) Means Something That Is Expressing More Dirty And Unhygienic . This Slang Phrase Or Word Comes From People Who Are Part Of Funny Stuff On Social Media. MCRD Is Expected To Be Funny To Some People But The Rhymes Are The Job.
"you see this quite old innit yeah"

"of course bro its Musty Crusty Rusty Dusty"
"Hahahahhaha this joke never ends"
by Bleddy Drills January 11, 2021
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An “Eiffel Tower” performed by the homeless
“Damn did you see olhobo chase in the middle of that musty crusty double tap?!”
by stripeddinosaur October 07, 2021
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