Booboo at rank 1,508 with 69 records, male-leaning, is the reduplicated baby-talk name that ended up on an official license — and 69 of them, which means this is a consistent low-frequency phenomenon rather than a one-off. The name is either a sincere term of endearment that became official, or a reference to Yogi Bear's companion, or both.
The Yogi Bear Reference
Boo-Boo Bear from the Yogi Bear cartoons (Hanna-Barbera, first appearing 1958) is the obvious pop-culture anchor. Boo-Boo was Yogi's smaller, more cautious companion — sweet, slightly nervous, the voice of reason that nobody listened to. A dog named Booboo carries that exact energy profile: beloved, slightly timid, absolutely devoted to whoever feeds them. Beagles and small mixed breeds named Booboo feel particularly accurate.
Baby Talk Formalized
The other path to Booboo is pure baby talk — the reduplicated sound pattern (boo-boo, bye-bye, night-night) that humans use instinctively with infants and animals. Some owners simply called the dog Booboo from day one and it stuck before they registered any alternative. The name is maximally endearing and zero percent aspirational, which is its own kind of honest pet-naming philosophy.
Social Context
Booboo works perfectly in a private household and requires a certain social confidence to say at full volume in a dog park. Calling "Booboo, come!" among strangers will produce smiles and possibly gentle laughter, which many owners find more feature than bug. Compare Babe at rank 1,471 for a similar term-of-endearment-as-official-name dynamic with slightly less phonetic comedy.