Group sex where the participants are all coupled together continuously like a train, engaging in various pleasures at the same time. Different from an orgy, which is usually several couples in the same room, or a gangbang, which is (usually) several men focused on one woman or man.
Watched a great porn the other night, 4 women & 4 men were doing a freight train!
I large alcoholic man who loves to drink Kharkov. You will find this mysterious creature on the futon in his room. He is usually watching star trek or scrubs. If you are lucky you will be able to spot him migrating from the room to the bathroom. When in the bathroom you can hear the furious roars coming out of his ass from all the way down the hall. When he needs some lovin he looks to 27 year old hood rats. BEWARE!!! If you catch him in a drunken stooper he will most likely be covered in pretzels and will pass out when you least expect it. If he does pass out in front of you kick him in the nuts(they will most likely be exposed) then pretend to call the cops.
Freight Train you trashed the room last night!!
Freight Train get the hell out of my room!
Freight Train you are one hot piece of ass
When a man runs his giant schlong through a womans clevage.
Yo Man, I totally freight train that bitch.
Blowing smoke out of one's nose while performing oral sex.
Jimmy got a freight train last night from Cindy while she was taking drags off her cigarette