Rail Slice

When having sex and you end up with a scratch of some description from the sex that scratch is a rail slice.

"Woah? Where did you get that scratch?" "Nah it's nothing, just a rail slice"

by BigBar760 February 25, 2010

chocolate railslide

After taking a #2 (without wiping), it is the act of riding down someones arm with your bare ass, ie a railslide.

Frank wasn't paying attention and his arm was exposed, so I took advantage of the opportunity and completed the chocolate railslide, effectively wiping my ass with Frank's arm.

by tkblazeys June 28, 2009