Definition of: whiff

(hwif) noun
1. Any sudden or slight gust or puff of air.
2. A gust or puff of odor: a whiff of onions.
3. A sudden expulsion of breath or smoke from the mouth; a puff.
4. An inhalation, as of smoke.
—v.t.
1. To drive or blow with a whiff or puff.
2. To exhale or inhale in whiffs.
3. To smoke, as a pipe.
—v.i.
4. To blow or move in whiffs or puffs.
5. To exhale or inhale whiffs. [Alter. of ME weffe an offensive odor; imit.]
—whiff′er noun