noun. To form a line in which everyone humps the person in front of them. This can be done with either all guys or a female with a strap-on between each male.

When you have a rather long piece of toilet paper leading from your ass out to the floor or extending from skirt or pant leg. Also see trainal.

The act of sticking toy trains in one's butt-hole.

A Long line Of People Giving anal and moving at the same time

The beautiful art of shoving cardboard cutouts of Thomas the Tank Engine up your anus.