a bulging bubbling penis longer than 8 inches or a dinosaur's erection.
"that collin has a penisaurous rex."
by peniswhore45 January 18, 2009
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The dinosaur that all people love (especially girls that want to fuck with him) it is very recognized for his big, giant dick
Chris wants a Penisaurous-Rex for his birthday.
by XX-DOGEBITCH-WOOf February 5, 2018
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