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When a male or female excretes saliva into the palm of their hand and proceeds to vigorously masturbate a penis shaft until arrival.
"Hey Brian, did you get any action last night?"

"Hell yes! Emma wouldn't let me fuck her closed fist, but I got a spit wristy instead! Don't I look so muscular and healthy today? Yeah, spit wristys do that!"
by BartoBabyGurl March 07, 2010
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