Top Definition
To occupy ones time by playing Mass Effect or Mass Effect 2 (Mass Effect 3 will be included when it comes out), instead of hanging out with friends or doing more important things.
Yo Eliot, why didn't you wait for us to pick you up from the movies? What, you couldn't wait to get home to Masseffecturbate.
by Gnezz10 February 23, 2010

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