[I'm a happy cat] (4)

I believe the answer is:

purr

(Other definitions for purr that I've seen before include "content? I might" , "Tiddles' sound" , "4's sound" , "Sound of a happy mog" , "Make contented sound like cat" .)

I've seen this clue in the USA Today.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.