a rating of how sexy (or appealing to masturbate to) is,
ratings go from 1 to 10,
1 being E.T. wearing nothing but a sombrero and a strap-on,
10 being Angelina Jolie 20 years ago
Adam: Dude, did you see the Grammy awards last night?

Josh: Heck yes! Megan Fox was so hot!!

Adam: Dude...you're stupid, she's only like a 6 on the jerkability scale.

Josh:wut?

Adam: Her thumbs look like big toes...
by Beat Off Ben, AKA Ben K. April 16, 2011
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When a picture or video is just sexy enough to get off to.
damn did you see her new Instagram post that shit was jerkable for sure.
by Tkabpro December 07, 2015
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1. Cartoon's drawn in a provacotive and sexual way

2. Hentai

See also: tentacle rape
"After dinner I fully intend to sit down with brandy and a fine cartoon jerkable and wank."
by Tweakumz July 06, 2003
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