From DaisyMae's Feline Dictionary of Terms and Phrases, the word of the day is:
BUN-KISS (noun) ... bun kis ... 1. a small, rounded stain on a horizontal surface such as a counter or windowsill and made by the center orafice of the two fleshy, fur covered protuberances located immediately below the tail after one has failed to ensure proper feline hygeine; 2. a feline (or other species) who behaves as if s/he is stupid, unsophisticated, and/or rude (aka "a big meanie").
1. Sparky Fuzzypants left an unintended bun-kiss on the linoleum after using the litterbox.
2. Lucky Charmz was being a bun-kiss: He stole Fudgie's snack, dumped the fuzzy mouse into the water dish, and spilled Mom's ice water all over the end table.