Charon Language

The Charon Language is a strange communication system used by the Charon species.

Being arachnid-like creatures, Charon "speak" by rubbing their mandibles with one another, causing clicks, squeals and scratches. As far as has been analyzed, this language can only be reproduced by other insectoid species, and probably by specially-programmed protocol droids.

Charon language does have a written form, including intricate web shapes that can easily be confused with decorative patterns, unless one is very familiar with the language.

=Sources=
 * Wookieepedia