The act of putting up ones middle phalange as if to "flip someone off" and then continuing to stick the finger deep, deep into a girl's vagina. Once the finger has been placed into the cave, one may pursue to swing it around as if it were dancing like a slovakian princess.

Exact Definition: Finger to Slutty Dancer Goddes Vagina Action.

Etemology:
Slovakian = Slutty Dancer Goddess
Princess = Vagina