to have 3, 4, or even 5 of your best friends have sexual intercourse with one female companion at the same time
"Dawg, Zach, Robbie, Ryan, and I just RAILED Megan!"

"Hey Dave, would you RAIL?"
by bruno da kid 87 July 15, 2008
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when you are aware of your own existence but have no free will.
mang, i couldn't get my Monotonic Gold this month so im stuck On Rails today! HELP!
by Mad Hattress 9263 February 25, 2019
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n. A long, thin metal strip that you slide along whilst wearing a snowboard. Often tarnished with the blood of unlucky riders.
Fuckin' shit man, did you see that breh mash his head up on the rail or wha
by l337 haxx0r April 3, 2004
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Paintball term meaning quickly walk the trigger of your marker so as to lay a line of paint through the air.
1: I'm going to rail these kids
2: That dude is railling!
by 24x24 December 10, 2006
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to fuck the living shit outta a girl so aggressively she can barely walk and has a sore down there after. synonyms for this include pound and bang, those are used in different contexts and severities tho
don't rail unless you have high strength and are into kinky shit
by vinnie357325 May 1, 2022
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(v) to exert your muscles to keep fit using gym weights and equipment; the main intention is to increase muscle mass and muscle endurance, but the activity may also increase physical attractiveness and one's ability to score
"Well Duncan, it seems as if the female specimens in this tavern have been glancing your way lately. Why, have you been exerting your bicep muscles by raising heavy objects?"

"Spot on, my dear chap! I have been railing this past week like a madman. But railing like a madman will do no good if you feed your body mutton lard and haggis. Why, you need to eat nutritious and healthy meals to maximize your effort in the weight room!"
by Old Man Squash January 30, 2012
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