Definitions by T.D.B.

Thicky-Dicky

A mans penis that is average to long (6-8 in) but Very thick (6.5 or more in. around)

Tommy Lee

Girl 1: heard U & Zane hooked up, is what they say true?
Me: oh yeah, he's a true Thicky-Dicky

Thicky-Dicky by T.D.B. March 26, 2008

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some who is unusualy large for thier body size

People always said he was big but look, hes hung like a retarted gerble, its gotta be 7" around

MY Boyfriend ,NOT yours