potboy

noun3

1. •
   A boy employed as waiter to serve (pots of) drinks, as in a tavern.

   • I put on my kitchen potboy disguise and rode down to B-1 in an elevator that smelled like chicken soup, barbecue sauce, and Jack Daniel's. — 2011
2. •
   (UK) A boy or man employed in a public house to collect empty pots or glasses.

   • (“Hoo-roa,” ejaculates a pot-boy in a parenthesis, “put the kye-bosh on her, Mary.”) — 1837
3. •
   A boy employed in a plant nursery to tap clay pots with a stick for their ringing sound, indicating whether the plant required watering.