jack main 

A player of the hit 2007 game Osu of the game mode, mania, who mains a skillset known as jacks. Said player is often cringe as jacks cringe.

tech main : oh yeah you know winther

speed main : yes i know but he hack and jacks cringe he jack main

stamina main : jacks more like (cringe

jack main by upr- September 2, 2021

jack main 

The definition of a man. His sheet beauty and strength is enough to make you nut during no nut November.

You know Jack Main? You mean the greatest man to live?

jack main by Dick nig November 6, 2019

Jack the mainline 

Doing heroin intravenously in the style of Robbie Williams. See also rock the mainline.

From Robbie Williams' "Rudebox":

"Ok then check the tan line
Make your body shape
Like you're stood on a landmine
Call me on my mobile
Not the landline
And jack the mainline
At the same time"

Jack the mainline by Some Fresh Money September 18, 2007

jack my main squeeze 

jackson is a cool kid and he likes to send memes especially about the holocaust he is a terrorist and is apart of the mafia and likes to rape young children.

hey look it's jack my main squeeze the terrorist

jack my main squeeze by jsbshhahaha bahah June 28, 2019

Jackmainfoldtv 

This one motherfucker on tiktok who is,in all senses of the word,a dick
/j

Hey did you hear about Jackmainfoldtv on tiktok? No who even listens to that mf

Jackmainfoldtv by BoxBento September 10, 2021