A globular vessel with a straight upright neck, commonly of earthenware, used in tropical countries for holding water.(noun)
The Century Dictionary (Public Domain)
Use "water-monkey" in a sentence
"Jack offered a feeble apology and felt revived after a pull at the water-monkey."
"Thankful for the darkness that closed around him, he slung the water-monkey over his shoulder in its hammock of netted cord, pushed the side of codfish inside his shirt, poked the chart into his boot-leg, put the cheese in the sack atop the flour, and was freighted for his journey through the hold."
"What Joe coveted was the porous jar or water-monkey which hung suspended in a netting above the table."