cacoëthes or cac·o·e·thes[ kak-oh-ee-theez ]
1. an irresistible urge; mania.
Origin: 1555–65; < Latin < Greek kakóēthes, neuter (used as noun) of kakoḗthēs malignant, literally, of bad character; see caco-, ethos
EXAMPLE SENTENCES FROM THE WEB FOR CACOETHES
Among the rest she was seized with what we men call a cacoethes of the needle: "a raging desire" for work.
WHITE LIES|CHARLES READE
As cool as you like old Peter replied, 'Cacoethes loquendi.'
COMBED OUT|FRITZ AUGUST VOIGT
But the cacoethes scribendi possesses me, and all my leisure hours are devoted to a Suite.
THE LIFE & LETTERS OF PETER ILICH TCHAIKOVSKY|MODESTE TCHAIKOVSKY
Erasmus shared with most scholars of the Renaissance the cacoethes scribendi.
DESIDERIUS ERASMUS OF ROTTERDAM|EPHRAIM EMERTON
This cacoethes scribendi is the pest of every local curiosity or public watering-place.
PERSONAL MEMOIRS OF A RESIDENCE OF THIRTY YEARS WITH THE INDIAN TRIBES ON THE AMERICAN FRONTIERS|HENRY ROWE SCHOOLCRAFT
Now YOU come up with a sentence (or fic? or graphic?) that best illustrates the word.