Top definition
An affliction, usually inherited by a major fan of the Star Wars series, in which a late night yawn sounds like Chewbaca.
So far, only affects one person in the entire world.
Elijah just yewbachaed.
by mR.siNiSTer October 09, 2006
Get the mug
Get a YewBacha mug for your friend Rihanna.