Top Definition
Something so big, it's more than enormous.
The Tsar Bomba had a giganormous mushroom cloud. It was the detonated October 30, 1961 and is still the largest bomb ever detonated on record, lucky humanity!
by ksadya May 11, 2007
A mix between the words ginormous and gigantic!
Omfg her boobs are so giganormous!
by gawjusA July 31, 2009
Free Daily Email

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

Emails are sent from We'll never spam you.