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1.
A one sided Sexting conversation or sexting alone.
1) You might be Masturbexting if you send a sext and get a single word reply like 'No', 'Nope', 'Yup' or simply no reply at all.

2) You might be Masturbexting if you are playing both roles in the sext conversation ie:Replying to sexting messages back to yourself, after the original went unanswered.
by Hartford's Hubby November 01, 2011