Rock the mainline

To get "high" on heroine through the means of an introvenus-needle. I.e. - Shooting up.

Addict: Yo, dog... Yo got the shit to lemme rock tha mainline?
Dealer: Fo' sizzle ma nizzle, that'll be fiddy.

by God May 20, 2003

Mainlining Murder

A killing in which drugs are shot into the veins. Used in the song by Lars Frederiksen and the Bastards

I said a mainlining murder baby (part of the lyrics)

by Mardy blackardy October 18, 2010

Mainline

A group of fucksticks that smell like your uncles rotten ass and they all fight like a pack of rabid badgers over which idiot knows the most about a fucking fan clutch

I'd sure hate to be working on mainline

by Conkysbadlovelife April 17, 2024

Mainlining

The act of participating in a traditional conga line, however everyone must insert their penis into the next man’s anus. There must be at least 10 people for this to count. Extra points if the front of the conga line meets the back to form a circle. This continues for at least 45 minutes before simultaneous ejaculation. Everyone then shits themselves, whilst still having a penis in their rear. The ritual ends with post ejaculation docking.

Fin: I really want to go mainlining with the lads
Alfie: me too

by Crack the whipper March 13, 2025

mainlining

pursuing (somone, something) with an intensity that keeps you up from Page Zero to Page Zero

Jasper and Kelsey stayed up all night mainlining after a good acronym for the pres search

by thresky October 21, 2022