The inspiration of the brilliant The Meaning of Liff series was that “it seemed a waste to have words cluttering up signposts when they could be usefully attached to something namelessly familiar”. Two related definitions:
Gallipoli. Of the behaviour of a bottom lip trying to spill out mouthwash after an injection at the dentist. Hence, loose, floppy, useless.
Ljubljana. What people say to the dentist on the way out.