That one kid who always gets upset over small things. He will block anyone that doesn’t agree with them, and when he can’t think of a comeback he’ll run away or have his “friends” defend him. He usually is a lot younger and plays Fortnite, and knows the dances by heart. If you know a Jack M, chances are he’s invited you to a one on one “sleepover”.
by KeiKenchi May 30, 2021
The one person in your class that smokes too much weed and watches rick and morty instead of actually learning. He cannot spend a minute away from his phone and thinks rap music is avant garde art. Although he is a nice person when he wants to be, he is also a bully. He will steal your stuff and punch you if he sees you in a bathroom. Everyone has a Jack M in their lives.
by WhyYouAlwaysLion2019 December 05, 2017
Jack M's are the shortest and most nobfaced people You will ever meet, They Will Lie about all stuff Just to try and get your attention, they have the smallest dicks In the world whereas A Jayden, A louie , A kenny and other names have absolute Anacondas in their pants, Girls with insecurities will not Like a Jack M
Girl: Omg Who the fuck Is that whipping their small string dick out
Other Girl: that must be a Jack M's Guy
Girl: Oh those are the jacks That Lie about shit innit
Other Girl: that must be a Jack M's Guy
Girl: Oh those are the jacks That Lie about shit innit
by Bumbaclaut69420 February 09, 2021