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2.
male, meaning to masturbate and ejeculate
What are you doing in their little Jimmy?
Webslinging Mum, go away/
by William Mith April 01, 2005
 
1.
When a man ejaculates into his hand and then proceeds to "sling" the seminal fluid at a girl's face in a manner much like the Amazing Spider-man.
"This girl won't swallow, so I have to resort to web-slinging her instead."
by Ross Johnson March 02, 2006
 
3.
A sexual act; the act of ejaculation through self-flagellation onto one's own hand, tossing the ejaculate into the face of a sexual partner with a swift, comical motion.
Seamus' girl Brooke had the pink eye for a solid week, and everyone knew it was because of his webslinging fetish.
by Jacob Voelzke November 02, 2007
 
4.
fingering two girls at once.
I went to the bathroom with jesse and chloe and i started to go webslinging them.
by RawDiggitty March 10, 2010