The desire to or act of destroying each and every one of The Jonas Brothers and/or their fans.
1 - This feeling is usually aquired by underground bands that could never get publicity like The Jon-Ass Brothers despite being more talented.
2 - It can also be aquired by someone that finds themself in a situation where they must talk to a Jonafied individual in a musical subject not concearning The Jonas Buttbuddies.
1 - Hey, Sean, I figured out why your band can't get famous!
Cuz everyone's too busy loving those butt buddies!
Who? Slipknot? (Yeah, I said it!)
No, The Jonas Brothers!
Ugh, but we can play circles around them! That makes me want to commit Jonacide...
2 - Hey, Tiffany, did you hear that the guy that shot John Lennon just got released on bail?
Who's John Lennon? Sounds like a JB knockoff!
(Stab, eat the body)