Example 1:
Jamal: In our school the plates are just plates with no edges.
Mats: Bro, that's crusty!
Example 2:
Jamal: Woah! why does he sit on his roof instead of the balcony?
Carl: I think he likes the view better from up there.
Jamal: Damn, that's crusty!
Example 3:
Bob: Do you see what I see?
Ronald: Haha, is that guy swimming with his feet first?
Bob:
I think so, but why is it working?
Ronald:
I don't know, but it's really crusty!