a euphemism for sex, popularized by Marvin Gaye in his classic "Let's Get It On"
I've been really tryin , baby
Tryin to hold back these feelings for so long
And if you feel, like I feel baby
Come on, oh come on,

Let's get it on
by 108 December 5, 2001
having sex
doing it

you get my flow
Dan, go get it on with Susie after the party.
by estizi9 May 12, 2006
I got my popcorn, I got my candy, I got my baby; let's get this movie on
by Anonymous December 6, 2001
A positive statement to pump someone up like a cheerleader. To achieve a goal. Reinforcement on the repetitive notion to achieve maximal greatness at the task at hand.
Kelli "I'm takin' two cookies"
Jami "Get it Get it!!"
by JaKell August 14, 2015
Phrase encouraging whomever is listening to go ahead and move forward, doing whatever it is one is talking of doing without haste.
Brian told Bret, "Bro, if you gonna go get me my money you might ought to go ahead and get-that-in before I have to go".
by Nikki Stixx December 9, 2018