Yool Is Bloo (1997)

ONCE UPON A TIME, a jealous little elf named Yool felt neglected, lonely, and positively enraged. It was Christmas Eve and he knew Santa was away cavorting in other people's living rooms. The thought of Santa engorging himself on countless helpings of fatty milk and gooey cookies sent him into a rage, plus Yool knew all about Santa's secret kisses. Yool began smashing everything in sight, including his little elf friends with their upturned noses. A trusty hammer goes a long way on a lonely Christmas night.