caulker

noun

1. A person who caulks various structures (as ships) and certain types of piping.

   “He was one of the best caulkers around.”

2. A tool used for caulking ships; a caulking iron.
3. (archaic, slang)An alcoholic drink; a dram.

   ““Will you taste, messmate?” he asked; and when I had refused: “Well, I’ll take a dram myself, Jim,” said he. “I need a caulker, for there’s trouble on hand. And talking o’ trouble, why did that doctor give me the chart, Jim?””

4. (alt-of, archaic, informal)Archaic form of corker (“something large or remarkable, a whopper”).
5. A lime kiln.