barker

Someone or something who barks.

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

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.

A shelf-talker.

A video game mode where the action is demonstrated to entice someone to play the game.

• The barker looks action-packed, but actually playing the game is rather dull.

A pistol.datedslang

• Barney, opening a cupboard, brought forth several articles, which he hastily crammed into the pockets. “Barkers for me, Barney," said Toby Crackit. “Here they are,” replied Barney, producing a pair of pistols.
• Parkin, the Oxford Street gunmaker, sent me a brace of barkers in silver mountings, with my initials engraved—good for trade, I imagine.

The spotted redshank.

A person who removes needed or valuable tree bark, as on a cinnamon or cinchona plantation.historical

• The profession of barker has been made largely obsolete by the realization that in most cases saplings can be cultivated far more profitably.

A tanner.obsolete

• The profession of barker has been made largely obsolete by the introduction of more effective tanning agents, but it lives on as a surname.

A machine used to remove unneeded bark from wood.

• Run these logs through the barker so we can use them as fence posts.