A sport where people zip from a starting point to the landing; they're harnessed to the line & there's bicycle~like handles to hold onto & a cog attached to the line; ensuring their safety. It's a high~adrenaline sport!
1. a sexual act where a girl waits and the guy runs, slides and enters, in a very straight line. (as in a zipline) It's a difficult act to maneuver, and only for the very talented. For the more adventurous, use props such as rollerblades, ice skates, or, in more extreme outdoor situations, an actual zipline.
2. The opposite. The guy waits for the girl.
3. Anal variations
4. Oral variations
5. Reverse Zipline
Larry: "Hey Amy, how did you break your nose?"
Amy: "Aw man I had a terrible inverted ziplining accident last night."
Larry: "No way, I thought you were a square. Call me up later."
Jay: Fuck my life. My mom found my "ziplining" skates.
Laura: Don't worry I saw your mom setting up a zipline in the backyard.