an instance where one has been masturbating alone in his/her house and is approaching climax, and has to stop because mom came home and she wants you to bring in the groceries or take up your time in some other lame way that resembles the opposite of orgasm.

I was jerking off to a UFC fight but had a masterbortion when my mother came home and made him plumb a turd out of the toilet.

by chef jugfuck October 31, 2008

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