caulks

Verb

caulk (third-person singular simple present caulks, present participle caulking, simple past and past participle caulked)

1. To drive oakum into the seams of a ship's wooden deck or hull to make it watertight.
   • [W]e might be disturbed during the night by an order being given to "go about," and by hearing in the quiet hours of the morning the familiar inquiry of "How's her head?" Mine often ached with the din of the men caulking all day long!1887, Harriet W. Daly, Digging, Squatting, and Pioneering Life in the Northern Territory of South Australia, page 112
2. To apply caulking to joints, cracks, or a juncture of different materials.
3. (slang) To copulate.
4. (slang) To take a short sleep; to nap.
   • There was the goggle-eyed daughter a blowing the Grampus [throwing a bucket of water upon a person] with the platter-faced planter, whenever he caulked upon deck; […]1829, William Nugent Glascock, Sailors and Saints: Or Matrimonial Manœvres, page 179

See all 8 meanings of caulk