Green’s Dictionary of Slang

kiflukus n.

[ker- pfx + fluke n.2 (1)]

(US) an instance of bad luck.

[US]Ade ‘The New Fable of the Aerial Performer’ in Ade’s Fables 195: When the final Kiflukus was put on the Ponies, he assembled the residue of his Bundle and began to work steady as a Guesser in a Broker’s Office.