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1.
The act of masturbating while waiting for a significant other to have sex with.
Alex was masturwaiting for at least 20 minutes before James arrived.
by orlando mun September 20, 2009
 
2.
Waiting for everyone in your house to go to sleep to spare having to hear them or them hear you while masturbating.
John: Why the hell are you so tired?
Bill: My brother wouldn't go to sleep, I was masturwaiting until like 2AM for fucks sake.
John: What the fuck is masturwaiting?
Bill: Check urban dictionary fag.
by pseudiddlyeudonymaaaaa August 14, 2010