Thinking of nasty things or people during masterbation to prolong the experience.
"I think of your mom's fat ass while I nasterbate so I can go all night
by jimmyboypeace February 04, 2011
verb.

When, after jacking off, one makes a conscious decision to taste his own ejaculate.
Guy1: All I know is that my jizz tastes saltier than salt.
Guy2: What the fuck dude, did you nasterbate?
by PWHS February 11, 2010

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