Is it time for another word?

How about this one:


Pronunciationsheesh, just like it's spelled.  Shall I give it to you slowly?  f l ee r.

DefinitionAccording to my Balderdash cards it means to sneer, leer, or jeer.  According to the dictionary, it's a mocking laugh or smirk.

When you might use this in a sentence:  "A better question is why would you choose to use fleer in a sentence," she spat, fleeringly, "when sneer, leer or jeer mean the same bloody thing.  You sound like you have a wadded cotton rope stuffed between your lips and gums.  Get away from me." 

Honestly, how do these words make it into the English lexicon?