ˈhawse-plugNaut. A plug made to fit into the hawse-pipe to prevent water from entering. 1627Capt. Smith Seaman's Gram. ii. 10 They [use] a Hause-plug at Sea.1803[see hawse-hole].1886J. M. Caulfeild Seamanship Notes 8 When..heavy weather [is] expected..hawse-plugs [should be] put in.