The Collaborative International Dictionary of English v.0.48:

Snub \Snub\, v. t. [imp. & p. p. Snubbed; p. pr. & vb. n.
   Snubbing.] [Cf. Icel. ssnubba to snub, chide, Sw. snubba,
   Icel. snubb[=o]ttr snubbed, nipped, and E. snib.]
   1. To clip or break off the end of; to check or stunt the
      growth of; to nop.
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   2. To check, stop, or rebuke, with a tart, sarcastic reply or
      remark; to reprimand; to check. --J. Foster.
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   3. To treat with contempt or neglect, as a forward or
      pretentious person; to slight designedly.
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   To snub a cable or To snub a rope (Naut.), to check it
      suddenly in running out. --Totten.
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