Define Mainline Meaning

To inject a drug, usually heroin, into a vein. Also used to refer to the drug itself.

(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.

the intravenous injection of a drug. which means using a needle to get a drug into your vein, to absorb it through your bloodstream. a lot of drugs can be taken this way, the most commonly associated drug being heroin.

One who does drugs such as heroin by means of shooting up in a vein. Intraveinously

One who injects drugs into their bloodstream with a needle.

To watch a large amount of a geeky television show, episode after episode, for a long period of time. A season of Buffy in two days, for example.

Similar to marathoning movies or chain smoking, but more geeky.

The act of binge-watching or binge-listening all episodes of a podcast or all episodes in a season of a TV show without breaking for sleep.

A person's main significant other, even though they may be dating several people at once.

the act of taking internet lingo and applying it to real life conversation

Spending an inordinate amount of time on the toilet taking a dump.