A Fling-Ding is a word used in replacement of any other word. The origins of the word Fling-Ding stem from references to one's belly-button, their navel. However, the word as come to be used to describe just about anything lacking a description, or an appropriate name. Especially if one cannot recall the name of something in specific.
I just got a sweet piercing on my Fling-Ding!!!
OMG, does anyone know where I put my, my umm, ugh i cant remember what its called. Where is that Fling-Ding?!?!