by Hammerhead250 October 29, 2020

to do something prematurely
I think I jumped the gun on calling her "bitch." she won't talk to me anymore, I guess it was too early.
by bitch November 21, 2002

The defining moment when you know someone has gone off the deep end. Inspired by Tom Cruise's behaviour on Oprah
by Asher77 September 2, 2005

a rare disease where one randomly decides they should kill oprah, join scientology, or suddenly marry katie holmes.
by the person who will soon reveal the secrets of area51 February 11, 2006

Some Jump Up songs:
Taxman "Unreal"
Original Sin "D For Danger"
Jaydan "King Of Miami"
Dirty Harry "Fools"
Taxman "Unreal"
Original Sin "D For Danger"
Jaydan "King Of Miami"
Dirty Harry "Fools"
by youcangarglemyballs March 22, 2009

Yeh, man. Jean was lookin extra busted today an I almost threw up when she gave me this look...like she wanna JUMP MAH BONES!
by Joshiro007 February 21, 2003

The precise moment when you know a program, band, actor, politician, or other public figure has taken a turn for the worse, gone downhill, become irreversibly bad, is unredeemable, etc.; the moment you realize decay has set in.
by M. R. Traska September 19, 2005
