BRAINTRAIN 

THE ACT OF PENILE INSERTION THROUGH ONES NASAL CAVITY.

YO, ME AND MY HOMIES DONE RAN DA BRAINTRAIN ON DAT BITCH

BRAINTRAIN by JACKRAT September 26, 2008

fry brain train 

What some citizens of Juneau AK. USA call public buses aka. public transit.

{Peter}: Don't light that siggeret, because I can see the fry brain train coming!

fry brain train by Telephony April 16, 2015

BrainRaisin 

A brainraisin is reference to some stupid, irrational and underdog verbal or textual expression... just say something stupid; like this last paragraph defining BrainRaisins.

bff: say it again brainraisin
me: .... *sigh*

BrainRaisin by UrbanTuner December 18, 2019

brainstrain

1-when you are trying so hard to work out something far too complex for your state of mind at the present time that you get a headache.

2-when your so mentally exhausted thinking of minor simple things is a massive effort.

etc.

1-If there was a fence that was like a grid, and the total volume of the fence was 3ft cubed, and the fence was 6 foot tall. if the fence was evenly distributed and a dragonfly measuring 1” height and 4” width, and it could only fly up to 4', what is the probability it will hit the fence, flying straight at the fence, at any given point within the range given.
reading that gave me massive brainstrain

2- what is 5+5+5+5+7+5? too tired, giving me brainstrain

brainstrain by BrAiNsTrAinNN March 28, 2011

brainrail 

To forcibly fuck somebody or something's head so hard that your penis (or some other foreign object) penetrates that somebody or something's brain.

If that parrot doesn't shut up I am totally going to brainrail it.

brainrail by Cat Milker August 19, 2011

brain train 

When a girl gives a blowjob to more then one guy at the same time. The girl is the locomotive pulling the other cars of the train. thus called a brian train.

"last night we had a brain train going with this girl.. she was blowing all three of us at the same time!"

brain train by conduct0r August 22, 2009

Brain Train 

It's your train of thought, which all goes to naught if what you end up with isn't what you sought.

"Shit yo, your brain train just derailed! That shit ain't germane to ANY topic" - said to someone whose conversation went from sleeping bags to whether it would hurt to be slapped in the face with a dick

Brain Train by Techno Dracula January 28, 2009