One who is nasty and doesn't care much for themelves. Kind of close to crusty, because bad higene is included in all that is crunchy. Cause if you crusty, you crunchy.
Denise is so crunchy, so doesn't care one bit bout how ho-y sleeping with the football team is. She just nasty!
Crunchy is a word that my group of friends and I use as an all pourpose word. We use it as cool, saucy, angry, and other things like that. We use it like the way that some people would use "Sick", "Wicked", or "Bad".
"59 friends??? Dang, you are Crunchy!!!"
"Calm down and don't be so Cruchy"
"Wow. That dude is so sweet and Crunchy"
Beyond crusty. Like a piece of cheese, when it gets beyond the point of being crusty, it turns crunchy. When a person is so crusty that crusty is a weak insult, crunchy is the proper word.