noun
or calk·er ˈkȯkə(r)
( -s )
Etymology: Middle English calker, from calken + -er
1. : a worker who forces sealing matter into seams or joints with a caulking tool to make them watertight
2. : a tool for caulking ; specifically : a caulking iron operated by compressed air
3. slang : a drink of liquor : dram