Top Definition
(n.) A name given to an overly large penis; an incredible name to give to your own penis

(n.) Much like the king of the dinosaurs, this name makes your penis the king of dicks (can also be abbreviated T. Cock just like T. Rex)
Guy 1: My penis is kinda small
Guy 2: *Pulls out penis*
Guy 1: GOD DAMN! That's a Tydongasaurus Cock!
by Ankylosaurus February 24, 2010
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