Top Definition
1. Expression of sexual gratification online via cybersex.

2. Masturbation to anything else that happens online and/or that is viewed that is sexually gratifying.
1. I am e-sturbating furiously right now! (message typed as the guy has cybersex with this hot Swedish chick.)

2. Hey hold on! I'm very busy e-sturbating to these lesbo pics of Aria Giovanni at her official site!
by Mark H August 25, 2004
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