The Collaborative International Dictionary of English v.0.48:

Smack \Smack\, v. i. [imp. & p. p. Smacked; p. pr. & vb. n.
   Smacking.] [OE. smaken to taste, have a taste, -- from the
   noun; cf. AS. smecan taste; akin to D. smaken, G. schmecken,
   OHG. smechen to taste, smach?n to have a taste (and, derived
   from the same source, G. schmatzen to smack the lips, to kiss
   with a sharp noise, MHG. smatzen, smackzeen), Icel. smakka to
   taste, Sw. smaka, Dan. smage. See 2d Smack, n.]
   1. To have a smack; to be tinctured with any particular
      taste.
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   2. To have or exhibit and indication or suggestion of the
      presence of any character or quality; to have a taste, or
      flavor; -- used with of; as, a remark smacking of
      contempt.
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            All sects, all ages, smack of this vice. --Shak.
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   3. To kiss with a close compression of the lips, so as to
      make a sound when they separate; to kiss with a sharp
      noise; to buss.
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   4. To make a noise by the separation of the lips after
      tasting anything.
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