Urban Dictionary definition: A Priscilla is very rare like her name. She is spontainious. She doesn't do what you expect, which makes you love her even more. Shes beautiful, sexy, aggressive, and a whole lot of fun. She brightens up the whole room when she enters. She is not afraid of anything and anyone and can be somewhat frightening. Can be sweet but never get on her bad side it is a dark and scathe place. She is a slim brunette with tall muscular legs. Since she tends to guard her emotions and is not considered to be a love sick puppy like most girls. But of you stay loyal, constantly compliment, and if you happen to actually overpower her, she will be yours for a lifetime.