Train Brain

Similar to road head, train brain is getting a blowjob on an extremely crowded train.

Carl: Dude, I got the sickest train brain yesterday.
Chad: Nice, what happened?
Carl: I ended up cumming on the guy standing next to me and getting kicked off the train.
Chad: Gnarly.

by Thefuckersattheendofthetable May 6, 2015

Train Brain

A person with mild to severe obsessions with trains.

Can be used to describe general forgetfulness due to the distracting nature of locomotives.

"Collin where is the cresent wrench?". Must have forgotten it due to the Train Brain.

by Timothy Laybiel October 9, 2025