Master-Blasterbation

When a person masterbates while shitting at the same time. Producing a large log (depending on diet) that is for appearance sake cream covered.
Guy 1: Shit son I just got done Master-Blasterbating, shit got a little freaky and messy!

Guy 2: What the fuck is Master-Blasterbation?
by whitekneegrow February 21, 2012
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