Cutie-patootie. A name to describe someone (or a cat) that is utterly adorable.
Many variations include shik, shiki, shika shika shoo, shikadump, shikster, and oopsie shikalumpsie little baby.
Courtney: Hey shikster.
Rory: Eh dawg, you's a shiki.
Courtney: I know, and you're my shikalump too!
Rory: Thanks shik!