noun

1. Someone or something who barks.

   “My neighbor's dog is a constant barker that keeps me awake at night.”

2. A person employed to solicit customers by calling out to passersby, e.g. at a carnival.

   “Bob had amassed a considerable stockpile of double entendres from his days working as a barker for a strip joint.”

3. A shelf-talker.

Synonyms: barking iron, spruik, tout