it's on, like Rae Dawn Chong 

A retort meaning that something is really going to happen. Statement of agreement meaning that something for sure must happen. The fact that it doesn't really rhyme makes it funnier if used as a retort when talking to somebody who won't really get it and will actually think you used it cause it rhymes. However, now used in common language with reasonably intelligent people because the obscurity of it and lack of true rhyme makes it sound like something a truly stupid person would say.

Friend 1 (slightly less intelligent friend): I really feel like going out tonight, I gotta get my drink on.

Friend 2: Yeah brother, I'm with you on that. It's on.

Friend 3: Oh it's on, like Rae Dawn Chong.

it's on, like Rae Dawn Chong by flyerpaul April 6, 2009

it's on you 

it's fault of the subject

Girfriend: You was with a girl on skype yesterday, I saw!

Boyfriend: Indeed. But you was talking with a guy in chatroulette too, so it's on you.

it's on you by linkc007 August 11, 2011

It's On Like Lebron 

Your game is so good, it likens that of
NBA superstar and physical marvel/global
Icon-LeBron "King" James for his superlative play and understanding of the game. -

"Damn, he so good, It's on Like LeBron"

It's On Like Lebron by B-Side - Rob Tancredi October 6, 2008

It's on like Donkey Kong

on, fantastically on, the opposite of off, bringing it, go time, It's so seriously on...as in if you google "on", donkey kong would pop up...or if you google fought donkey kong and off...donkey kong, by a land freaking slide.

Example 1:

Someone challenging your epicness:
Let's play.

You:

What? Let's play? It's on like Donkey Kong.

It's on like Donkey Kong by Thatsmyfav August 24, 2010

it's on and crackalatin'

Said of an activity that is happening at a high level.

synonym for "it's on and poppin'"

"How's the party?"
"It's on and crackalatin'! You gotta get down here!"

it's on and crackalatin' by Weeva June 23, 2005

It's on sight

When you say your going to fight someone but then meet them and start running away

Female 1: when I see them I'm going to fight them

Female 2: (arrives)
Female 1:(runs away)
Tommorow

Everyone: it's on sight (all of them pretends to run away)

It's on sight by YOUR NAN 1 March 2, 2019

It's on like Groupon 

Phrase used to describe joy for the commencement of an event, the excitement for the beginning of something. Originated with the excitement one receives when getting a great deal on the famous coupon site Groupon.com

Alex: Dude, I just got a Steak dinner at Gibsons for like $20 bucks. Let's Go!!

Oscar: It's on like Groupon

It's on like Groupon by unemployed8 April 7, 2012