You know those little balls of yarn that form on your sweaters, that spoil the smoothness of the surface. They're called "pills".

Some people have a habit of picking at them--nay, a compulsion to pick at them.

And some people are so compulsive they pick at the pills on the sweater even if there aren't any.   That, friends, is floccinaucinilipilification.

Dave Oesterreich