Top Definition
the act of masturbating not manually but with the help of mechanical devices such as vibrators or Sybian machines.
Manual masturbation is better than mechanasturbation, I think.
by uttam maharjan October 20, 2011
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×