Spider-Swinging 

Verb.

1) When you climb backwards on top of an elementary school playmate on a swing. There are now 8-limbs, hence, the "spider-swing."

2) A particularly crude form of PDA, involving a couple at dinner, or any public forum, when one member drapes their legs across their partner's lap. It usually involves eskimo kissing or other acts of intimacy to heighten the level of annoyance. They are now an amorphous wrap of limbs, also, very irritating, hence, "spider-swinging."

"Your girlfriend is a serious spider-swinger."
"Sorry, I like you, but I am really not into spider-swinging."
"Dudes, quit spider-swinging, I am trying to eat."

Spider-Swinging by waywardbetty March 22, 2011

Spider Swinging 

This is when you sit on another person's lap (facing them) and swing!

Example 1: Oh man, I saw those two chicks spider swinging and it totally turned me on!
Example 2: Spider swinging like yet another one of the funnest things ever!!!

Spider Swinging by Hubert Ferdinand SovereignNeve June 8, 2011

swinging spider 

when a couple is having sex on a swingset. one partner is sitting on the swing while the other is sitting on their lap facing them. just like how kids swing with eachother but with a twist.

They were totally doing the swinging spider the other day at the park!

swinging spider by erorby August 16, 2009