monkey pump
Noun
Meaning
monkey pump (plural monkey pumps)
(nautical, slang, historical) A straw inserted through a gimlet-hole into a cask for the purpose of covertly taking sips of the contents.
Noun
monkey pump (plural monkey pumps)
(nautical, slang, historical) A straw inserted through a gimlet-hole into a cask for the purpose of covertly taking sips of the contents.