Someone who volunteers for research studies that mess with their brains (usually via psychoactive drugs) for some cash.
Danny signed up for 3 drug studies last week because he was broke, and went bat shit crazy...what a brain slut.
by clasw74 August 3, 2009
Get the brain slutmug. A sharp, icepick like pain in the middle of your forehead after consuming a cold beverage too quickly.
by professorofslang May 2, 2015
Get the freezer brainmug. by FactzMan69 June 22, 2019
Get the Brain AIDmug. Henry and Sharp on discord.. here is their discord Sharp#6900 and savage-pinecone#1174 they are utterly retarded
by Certex is the best November 14, 2021
Get the Brain Deadmug. Guy 1: I totally brain leaked last night while screwing my girlfriend
Guy 2: Aww man what you say?
Guy 1: Accidently said "Battenburgs are what make my life complete" about 7 minutes in
Guy 2: I'm Surprised you last 7 minutes
Guy 1: Wait what?
Guy 2: Sorry Brain Leak
Guy 2: Aww man what you say?
Guy 1: Accidently said "Battenburgs are what make my life complete" about 7 minutes in
Guy 2: I'm Surprised you last 7 minutes
Guy 1: Wait what?
Guy 2: Sorry Brain Leak
by AshleysMexicanDick October 24, 2014
Get the Brain Leakmug. It’s when you get a can of beans and heated up in Mach 10 and land in a African village (preferablly ookagawlahawsha) and shove it up the local gay mans ass (can opener is already up there) and pull it out and throw it in a cathedral and the citizens run and you go and retrieve and it is brain.
by Nae nae baby April 15, 2019
Get the Giving brainmug. 