Source : Webster's Revised Unabridged Dictionary (1913)

Whiff \Whiff\, n. [OE. weffe vapor, whiff, probably of imitative
   origin; cf. Dan. vift a puff, gust, W. chwiff a whiff, puff.]
   1. A sudden expulsion of air from the mouth; a quick puff or
      slight gust, as of air or smoke.

            But with the whiff and wind of his fell sword The
            unnerved father falls.                --Shak.

            The skipper, he blew a whiff from his pipe, And a
            scornful laugh laughed he.            --Longfellow.

   2. A glimpse; a hasty view. [Prov. Eng.]

   3. (Zo["o]l.) The marysole, or sail fluke.

Whiff \Whiff\, v. t. [imp. & p. p. {Whiffed}; p. pr. & vb. n.
   {Whiffing}.]
   1. To throw out in whiffs; to consume in whiffs; to puff.

   2. To carry or convey by a whiff, or as by a whiff; to puff
      or blow away.

            Old Empedocles, . . . who, when he leaped into Etna,
            having a dry, sear body, and light, the smoke took
            him, and whiffed him up into the moon. --B. Jonson.

Whiff \Whiff\, v. i.
   To emit whiffs, as of smoke; to puff.

Source : WordNet®

whiff
     n 1: a short light gust of air [syn: {puff}, {puff of air}]
     2: a lefteye flounder found in coastal waters from New England
        to Brazil
     3: a strikeout resulting from the batter swinging at and
        missing the ball for the third strike
     v 1: perceive by inhaling through the nose; "sniff the perfume"
          [syn: {sniff}]
     2: drive or carry as if by a puff of air; "The gust of air
        whiffed away the clouds"
     3: strike out by swinging and missing the pitch charged as the
        third
     4: smoke and exhale strongly; "puff a cigar"; "whiff a pipe"
        [syn: {puff}]
     5: utter with a puff of air; "whiff out a prayer"