Head Tails
this was the Basic term used to describe lekku, the two tentacular appendages that are found growing from the rear of a Twi'lek's head. These head tails serve a number of purposes. First and foremost, they are a source of vanity, as hair or feathers are to other races. They are also used in a silent form of communication among individual Twi'leks. The head tails also serve a ceremonial and sensual role in the dances performed by Twi'lek females.