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."
by waywardbetty March 7, 2011
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When two people sit on the same swing, face to face, creating 8 "legs". Thus, spider swing.

A non sexual-version of the swinging spider.
Search spider swing on youtube and watch the first video.
by Gomerj84 January 17, 2010
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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!!!
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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!
by erorby August 10, 2009
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