Homosexual innuendo implying a male threesome which includes oral compilation and anal penetration, simultaneously.
Also see. Lucky Pierre
Popularized by the music artist Yung Joc's song, "It's going down."
(Three males walk mall's public restroom)
male 1: "Is it goin down"
(Male 2 looks around the corner to see if anyone is around)
male 2: "It's goin down"
male 3: "Last time I did this I got the clap. You guys free?"
male 1: "Yeah bro I wear a condom."
male 2: "Do I look like I have something?"
male 3: "Nah, you look good."