Related Clues:

• Feline call
• Plaintive pet sound
• Ruben ___, Phillies Gold Glove-winning shortstop
• Feline saying
• "Boo!" from the stands, e.g
• Feline shout of disapproval
• Persian language unit?
• Sound from an Abyssinian
• Make a kitten sound
• Sound from a happy kitten
• Whistle of disapproval
• Seagull
• Audibly disapprove of visit by queen, perhaps
• Their sound is obviously cool for cats
• Flyer at coast somewhere? Not so, here