pipelining 

(verb) The process of injesting alcohol (normally) by means of funneling/feeding the liquids through a pipe (or more commonly used, a ~ 1-2 in. diameter hose) directly into the stomach.
The object of pipelining is to bypass the gag reflex to give worry free injection of hard liquor.

Works best with 100 proof alcohol.

May acceptably be called 'lining, if you are deemed cool enough to do so.

"I had an awesome time pipelining with you guys last night, you guys are all so cool..."

"Hey bro, lets do some 'lining"

"Kraven and Jrio are definately the most hardcore pipeliners in the world"

pipelining by Admiral Kraven Moorehead& Jrio September 10, 2009

Pipelining 

When two gay men do their version of scissoring. This involves them criss crossing their legs and touching buttonholes.

Did you hear Donnie and his boyfriend were pipelining? Yeah they made their buttholes kiss. Donnie loved it.

Pipelining by Nasty Buttler 69 April 8, 2021

mento pipelining 

When you pour Coca-Cola into your urethra until it reaches your bladder and mixes with the piss (making Coke & Piss) then putting a single Mentos mint down your urethra, reaching and reacting with the Coke & Piss, causing a very pleasant dick explosion.

Dude 1: How do you goon, Dude 2?
Dude 2: Either iglooing or mento pipelining.
Dude 1: How does it fit down there?
Dude 2: I'm a monk.

mento pipelining by manaphy_games March 22, 2025

pricelining 

where you go to priceline.com and get a deal on some hotel, plane ticket, etc.

let's go pricelining for our hotel in florida

pricelining by ¡ethan! December 25, 2008