When a guys ass is hairy and makes the same noises as a Wookiee.
Get your Chewbacca Butt away from me.
by EdibleViolas August 18, 2011
1 more definition
When you fart and the sound that accompianies it sounds like Chewbacca's scream.
A guy is standing in the bathroom, tries to shit but only a Chewbacca butt comes out. Accordingly, the theme song to Empire Strikes Back starts to play through the intercom.
by Matthew M May 10, 2006