To describe a lower class person, (Offensive) Someone who can't afford (Or just doesn't want to look like a TOOL) Aeropostal, and or Abercrombie, Hollister ect. Someone who looks as if they never bathe.
Someone who you assume smells, although you're always dodging them in the hallway for fear that your nostrils will fill with their putrid sent.
A word created by people who are, for lack of a better word, insecure about themselves.
"Why? Just because she can't afford douchebag clothes like you?"
2: eww look how crusty he is
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
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.
1:ew look at the crust under this desk
2: that's gum , you dumbass
Man, Dystopia sounds so crusty!