Used to describe someone or something that is generally bad or unattractive. Can also be used as just a noun("crust"). If you wish to use crusty in a neutral way, say "crunchy"--- for a good way say "crispy". Use crusty with rhyming words to emphasize a point.
"OMG this ugly hoe just cut in front of me in the McDonalds line... crustyyyyyy. "
"Boi, get you and yo crusty, dusty, musty Crocs outta here!"
"Boi, get you and yo crusty, dusty, musty Crocs outta here!"
by whyevenFightme December 11, 2015
by pimpingpartypalace August 20, 2012
Me: Bro, I just saw the lunch lady picking her butt like ten seconds before she fixed you your plate.
Friend: "Seriously? That's crusty!"
Friend: "Seriously? That's crusty!"
by Squidward's little brother December 03, 2016
by The very short one of all May 22, 2016
by theperfectpseudonym April 13, 2019