Exploded Jeans

Garment typically missing large portions of fabric that would normally cover one of both thighs and knees. More than just merely ripped jeans.

Mr. C: What happened?!?! You're jeans look like they have exploded.

Student: Mr. C, they're just ripped jeans.
Mr. C: No, those are exploded jeans. You're missing so much material. Aren't you cold?
Student: Honestly ... yes; yes I am.