Source : Webster's Revised Unabridged Dictionary (1913)

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.

   2. To have or exhibit indications of the presence of any
      character or quality.

            All sects, all ages, smack of this vice. --Shak.

   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.

   4. To make a noise by the separation of the lips after
      tasting anything.