A ginormous butt is someone that gets in the way of everyone else's fun. It's different than a big booty because big booties are awesome and fun to watch. Ginormous butts are really annoying and at least 3 feet wide.
Wow, Fran Novak sure is a ginormous butt!
by trdnick August 19, 2011
Spencer Rudnick is a ginormous butt.
by Franniepack August 19, 2011