Top Definition
A basis for comparing dick sizes. A fundamental source and end point for these comparisons to be justified from.
An american to a belgian. "It's a priori man My dick is bigger than yours ratio cognoscendi"
by americalovescanada January 21, 2012
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×