Chucky is the name of the homicidal doll in the Child's Play horror franchise, and that association is unavoidable. At rank 1034, it appears in pet registries often enough to confirm that some owners find the horror-movie reference irresistible — usually for small, innocent-looking dogs or cats whose contrast with the name's menacing history is the whole point. It's a name that works as a joke, and works well in that register.
The Horror-Movie Pet Name Tradition
Naming a harmless fluffy pet after a horror character is a well-established comedic move. Freddy, Jason, and Chucky all appear in registries for exactly this reason. The humor comes from the mismatch: a tiny Pomeranian named Chucky is funny in a way that a Rottweiler named Chucky is only kind of funny. The name's best use case is the ironic one.
Sound Without the Reference
Stripped of its horror associations, CHUCK-ee is two syllables, warm in sound, and functions fine as a pet name. It's a close variant of Charlie phonetically, with a slightly rougher texture. If the owner doesn't know the Child's Play films (which, given the franchise's recent revival, is increasingly unlikely), Chucky is just a friendly-sounding name.
The Honest Assessment
Most people at the dog park will make the Chucky reference. If the owner finds that exhausting rather than charming after the twentieth repetition, names like Chuck or Charlie provide similar sound without the commentary. The franchise association shows no signs of fading.