The practice of masturbating with exclusively upward motions starting from the base of the penis shaft. Usually done out of superstitious fear of downstrokes. Upstroking can be done with a single hand, but it can also done by alternating between both hands to increase SPM (strokes per minute).
by Doctor Wojak June 20, 2024
Get the Upstroking mug.An individual whom follows package delivery services around during the holiday's seeking out opportunities to steal boxes that are left in front of houses by the driver.
"Dude, me and Bob did a little UPStalking yesterday and nabbed a new PC thanks to the dork who left the box at a vacant house."
by Jacob Miller September 6, 2005
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