Top Definition
Children that are under 50 lbs and taking any type of martial arts class.

Damn, do you see all of those car-seat ninjas outside of the dojo yesterday evening?, Cosmo Kramer pwnd a bunch of car-seat ninjas.
by Byrd-Man April 12, 2009

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.

×