A slang term used to describe a women's vagina. It originate's from the hit UK
TV comedy 'Bo' Selecta!' and is suited to a generic European accent.
Also, if asked to show your 'potakian', a gesture is made with the mouth to show an inside view of a vagina being tongued ('licked out' etc). This is done by pinching the the top lip with one
hand, and the bottom lip with the other. The top lip is then pulled up, the
bottom down, and the tongue is then wiggled within the
hole.