Top Definition
a term used to describe the act of vigorously stroking the penis at a pace that generates a ‘mashing’ sensation. Also closely related to 'mashin the nana'.
Hey, where'd Cody go?
He's off Mashing the Banana no doubt.
#wanking #jacking off #jerking #tossing #wristy
by tripppers May 30, 2011
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