the stem of SNUB v.1 used in a few combs., as † snub-devil, a clergyman (obs. slang); snub-line, -post, U.S. a snubbing-line or -post.

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1785.  Grose, Dict. Vulg. T., Snub devil, a parson.

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1875.  Knight, Dict. Mech., 2231/2. Snub-post.… A form of bitt or mooring-post on a raft or canal-boat or flat-boat.

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1908.  H. Day, King Spruce, xxvi. 313. The snub-line down the steep quarter-mile … made a cut-off that doubled the efficiency of the teams.

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