Reverse Broken

Wasn't sure if it would make a difference where i post this.
OK i get in my car after a wrestling match and do to back out of my spot. I put it into reverse(stick shift) and get like a foot and then i hear a huge clank noise the car jumps and i now have no reverse. Every gear other than that works just dandy. Now when i try to put it into reverse it goes in fine but when i let the clutch out it just ticks like the pinion is sheared off or something. I don't know what it could be i'm no car genius so i don't have a clue but im DONE taking tit to Jones Junction. I'm gonna call my uncle tomorrow but i thought id ask yall too. Help!