The Mad Kat

This is Katrina's 'Jolly Roger' for her pirate ship 'The Epitaph'.
Its symbolic of her own personal philosophy shared by Countess Strom.

Oola's Skull: Shes nobodies victim

Leia's chain: She nobodies slave

Boushh's thermal detonator : Shes nobodies fool

Could be called Jabba's Demise as well.