Another term for having sex. This can also connect in a sexual way to orgasms, erotica, and more.
Austin: Dude, I need to bleach my eyes!
Chris: Why is that?
Austin: This afternoon, I opened my parents' bedroom door and saw them going at it on their bed!
Chris: *no words*
by Buttered Quayle October 22, 2018
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Primarily used in freestyling--the audience or fellow rappers tell the MC to go in...on the beat or into the cipher.

Also used in other appropriate settings where participation or action is necessary.

(instrumental playing)
"John--kill this beat! go in!"

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Jared: "That girl looks so fine over there. I want to talk to her."
Andy: Well, go in!
by Andy Taught Me November 20, 2008
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Old 1980s/ 1990s slang. Meaning 'going out with' or 'going steady with'.
Alex is going with Lisa

Jade and Bill are going together
by tim15423 July 28, 2009
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"We come from the go, to the top of the globe" -Kanye West
by MR.GabE February 17, 2008
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newfoundland slang:
1)a current happening, an event taking place (an alternative to 'what up, yo?')
2)a sexual engagement
1)"what's on the go, by's?"
2)"Did you get on the go with her last night?" "no.."
by the Matt-Ray July 19, 2005
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To enter into an activity with unparalleled enthusiasm and fervor.
I'm so hungry, I'm going in on this chicken pot pie!

Oooh this is my jam I'm going in on the dance floor!
by #TeamHellaSwag September 16, 2010
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