Someone who doesn't shower or bathe as a statement.
I can smell that crusty all the way from here.
by libra July 08, 2004
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Something grotesque, dirty, or hideous.
"That girl is so crusty looking!"
"That boy smells crusty!"
"You are so crusty!"
by AIMSNccrackkkheadd September 03, 2007
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Adjective used to decribe old people,a gross unidentified substance, anything broken, dirty, crumby, badly made/conceived, falling apart, stupid, wierd, gross, this word can be used very freely as it goes with anything that may have to do with the word crust but it never describes anything good.
1: that old man keeps staring at me
2: eww look how crusty he is

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1: i just got this from the dollar store and the lid wont close on it
2: here let me try... damn its not working it sooo crusty
1:that whole dollar store is crusty

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1:Mr Tawil thinks he can teach us history by giving us a whole bunch of crosswords, he is such a crust.
2:Yea, he smell like weed, cigarettes and bagels, he is such a crusty old man.

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1:ew look at the crust under this desk
2: that's gum , you dumbass
by Naomiiiiii January 16, 2007
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It's the old dried poop stain in your britches or on your ass that flakes off onto the toilet seat when you drop and squat.
Dude, you better use the other bathroom- Paulie just left crusties all over the seat.
by Tommy and Jim April 15, 2011
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A word to describe basically anything bad about anything.

Origins in Ohio from a group of teenagers complaining about a ton of stuff, and forming a very exclusive group called "crust gang"
Person 1: This school is so bad..\
Person 2: Yeah its crusty
by cruster duster December 01, 2019
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a fan of the genre of harsh punk rock/hardcore music called crustcore, crust punk or simply crust. a member of the crustcore punk scene. many crusties are also squatters or homeless. some obvious looks associated with the crusties milieu are black cloths, butt flaps, facial tattoos, lots of patches, dread locks and punk rock hair styles, bullet belts and sleeveless jean jackets. crusty is also used as an adjective to describe a band's sound.
you know the guy, that crusty squatter kid with that face tat and the dog.

Man, Dystopia sounds so crusty!
by darkmugan May 11, 2005
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