Train-Horn 

1. An audible warning device on a diesel or electric locomotive

2. The act of emitting a long and loud fart during an especially strong thrust when having sex.

In other words, farting while running train on someone

Dan and I were having great sex, until his eyes got really big, his cheeks got red, and then he train-horned on me. The smell wasn't too bad, but the sound really ruined the evening.

Train-Horn by derpyword15 December 3, 2016

Alabama Train Horn 

When someone reaches between a man's legs and tugs his balls down in an aggressive or assault style manner. This causes excruciating pain.

Well, Suzette caught Uncle Daddy with Cousin Jeska again and gave him the Alabama Train Horn. I think he learned his lesson.

Alabama Train Horn by LemmePikachuBoo May 3, 2020

train horning 

Train horning is when a circumsized dude and a cut dude touch tips together, then the "uncut" guy pulls his foreskin over the cut dude while making a train horn sound.

" dude I walked into the gym locker room only to find a couples fags train horning"

train horning by Ass gasket November 2, 2015

Train horning 

When 2 gay dudes touch penis's together and one pulls his foreskin over the other

So we were at this club, walked into the bathroom only to find a couple fags train horning

Train horning by Train horner October 19, 2015

trainpornophilia

A conditionan an individual has and likes to share with friends and the lady next door at silly hours in the morning after horrendous nights out. The condition involves watching Pornographic material with trains in it and no people and no story, or a story told to you but never happens

trainpornophilia - Film featuring trains doing things i can only describe as pornographic, displayed in full 1080p HD with full 5.1 Dolby Surroung Sound. Best watched at 5am with friends after a long singstar battle when completly hammered.

Nothing realy happens in it but the house owner can get very excited when the volume is at 77%

trainpornophilia by Hulls No 1 R-Pattz Look alike September 20, 2012