Boo
Boo can be an exclamation used to startle someone or express disapproval. A separate slang noun refers to a romantic partner or sweetheart. These are different dictionary uses. The word alone does not establish a particular fictional namesake or a cat’s disposition.
- Meaning
- A startling exclamation; also slang for a romantic partner
- Name or word origin
- English word name
Sources and meaning notes
The source distinguishes the exclamation from the separate affectionate slang noun.
- Merriam-Webster: boo The cited English dictionary senses; not a claim that every pet with this name was named for that sense
References checked .
Catalog grouping: Male. This is a browsing label and does not restrict which cats can use the name.
Popularity in cited datasets
Each position below belongs to its publisher’s sample and time period. These are not iCatNames registration counts or a combined ranking.
| Dataset scope | Position | Source |
|---|---|---|
| U.S. cat names — top 100 | #59 | Rover catalog (checked 2026-10-26; undated) |
An undated catalog checked in 2026 is not a 2025 annual result. Historical reports keep their published period. Source records on this page were checked on 2026-10-26.
Compare the checked ranking snapshotsNames in similar collections to Boo
These entries have source references and overlap with this name in the site’s editorial collections. The overlap does not measure pet-owner preferences or prove a shared linguistic origin.