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2.
A dingleberry with an excessive amount of hair, thus resembling the famous wookie Chewbacca from the Star Wars saga.
Person A: "Bro your dog has crazy hairy caca balls on the anus."

Person B: "Ya I tried cleaning those little pubaccas off yesterday with a spatula. They are stuck on pretty tough."
by billboners June 19, 2011
 
1.
pubic hairs that have clearly not been groomed correctily, or at all.

pubs that resemble Chewbacca from Star Wars
how was that girl last night? it was bad man, she was totally pubacca.
by thasssitbruhh April 14, 2011