it's on

what you say when the battle/showdown is about to begin, or when you want to fight someone after school.
It's on, mother trucker!
by fizzle April 10, 2004
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it's on

a closure synonym:bye, c u l8ter, etc. (only raw people say this)
I'm bout to go, it's on yall!
by #1ThirstBall February 02, 2005
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