jellicle means: The first time the word “Jellicle”, as it is commonly known, appears in the “Old Possum’s Book of Practical Cats” of T. S. Elliot. It’s specifically the poem “The Song of the Jellicles”. T.S. Elliot attempted to name the “Jellicle” cat. Eliot’s newborn niece learned to call Eliot “dear little kitten” from T.S. (in Community Dictionary, added by Jorge Wall)