The act of shitting on a pillow and then enclosing your member in the pillow and thrusting wildly.
Geoff: "I had a cracking dumpsturbate last night."
Steve: "Sum the experience up in less than three words."
Geoff: "Spunky shitty disappointment."
by Wankyshitdemon February 24, 2014
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The act of pleasuring ones self (masturbation) whilst defecating (taking a shit).
Al had a dumpsturbation session on his lunch break....
by Scottie2hottie82 October 1, 2010
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