(n) The front-running leader(s) of an industry; not the imitation spin-offs. Reserved for the select few whom others try to imitate albeit never successfully. If you are not mainline you are hopeless and should probably just quit what you do, now.
(adj) Describing an action that would only be done by someone/something that is mainline.
(adj) Describing an action that would only be done by someone/something that is mainline.
Guy 1: Why does that guy drive such a shitty old car if he's a lawyer?
Guy 2: He must not be mainline. If he were, he would drive a BMW 5 Series.
*******
Guy 1: Lebron James is overrated.
Guy 2: Seriously?! He is the most mainline basketball player of this generation.
Guy 2: He must not be mainline. If he were, he would drive a BMW 5 Series.
*******
Guy 1: Lebron James is overrated.
Guy 2: Seriously?! He is the most mainline basketball player of this generation.
by Reacharoundartist May 22, 2010
Weaponized wireless telepathic communications and informations system used by covert US military-intelligence in the Targeted Individual program.
by Medicine Owl February 08, 2023
by BRNOLA July 13, 2009
matt: I walked by a group of kids taking a test and said, "fucking scrubs."
joel: dude, you were totally mainlining.
joel: dude, you were totally mainlining.
by Taxt April 17, 2009
A Canadian Youtuber who is known for his model train content and taking shots of maple syrup he is also allegedly a foamer
by MinnesotaModelRailfan August 05, 2020
Goes to country club, wears lululemon tennis skirts. Everything is Vineyard Vines and Monograms. Cadalak SUV and marries older rich husbands.
by Tomrocks February 25, 2018
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"
"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"
by Some Fresh Money September 08, 2007