1 definition by Pyrotard

Top Definition
A more prominent occipital bone than typical. It was once believed that this area grew as knowledge was accumulated. More noticeable in canines.
The only smart dog I've ever owned had a knowledge bump.
by Pyrotard September 18, 2008
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.