This is usually used as a term that limits as someone's niceness that is used to show the limit of how nice someone can be. It says that there is always as nice as jack
by The OG of the OG September 2, 2016
Get the Not as nice as jackmug. 
Let’s go jack some noog! (If you were talking to a group of friends about to go to go into a social setting or about to take an exam)
by Yesma’am77 April 29, 2020
Get the Jack some noogmug. A round plump guy with a buzz cut who has a mushroom shaped head and pulls no bitches besides in 2nd grade. He doesn’t hop off his bike and wheelies around town. He is hard stuck elite in Fortnite, and unranked in siege.
Snoop #1 “Snoop have you heard of Jacks wheelies?”
Snoop #2 “Oh yeah that’s the guy who’s hard stuck elite, right?”
Snoop #2 “Oh yeah that’s the guy who’s hard stuck elite, right?”
by Marqueefer February 22, 2024
Get the Jackmug. the slummiest of slums , selfish manipulative rich stuck up know it all and extremely disrespectful to all girls. if you date a jack he will most likely cheat on you 27 times and then tell you how it’s your fault he did it. crazy and thinks he’s the most insightful person in the world but is dumber than a bag of dirt clogs
by ramennoodle69 July 2, 2018
Get the Jackmug. Someone who tries to make a living off of a meme page however it doesn’t work out and ends up looking like a mong. Also loves a good ol lie here and there.
by Unkn0wn Spec1men October 30, 2017
Get the Jack Shawmug.