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When you have "cyber sex" with someone in one massive wall of text, including all foreplay, sexual contact, and climax, without any input from the other party, and usually without invitation.
Jane: This guy messaged me on OkC. Didn't say hi, just started describing how he wanted to fuck me.

Laura: He cyberwanked at you? Gross!
by offtheball June 20, 2014
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