The act of titty fucking a fat man with moobs.
Greg likes to treat his man to some Mooby Dick.
by The E-Radicator September 24, 2014
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1. A man with a "dick" who also has abnormally large pectorals, making him appear to have man breasts (more commonly known as "moobs")

2. A pedophile who enjoys both "dicks" and "boobs"
by JACKSON_LIVES_4_EVA! June 26, 2009
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