To have a really really good nap (you wake up all sweaty, with marks on your body, bad taste in mouth, etc)
Me: Holy frick I just got railed to the moon!
Friend: For how long?
Me: Around 2 hours
The head of your penis needs to tap her vulva. Some believe the shaft needs to hit, but once just the head happens, railing has occurred.
A doctor might say you've been "Balls Deep."
Dude, after downing three Flora Doras, I blacked out. I woke up hours later, railing that hot girl from the Boat Launch!
To have sexual intercourse or making love.
I'd really enjoy a decent rail...
needed quickly, needed five minutes ago similar to on the fly
"You don't have that sauce, you better make it on the rail"
Snorting any kind of substance up your nose.
My buddy is just railing a gram of speed.
or railin, To be going fast or faster than someone else. Most of the time used with cars or motorcycles, it implies that you are in such control that the vehicle feels as if it is on rails
I was railing down the freeway at about a hundred switching lanes