Definition of wag

Definition of wag
  1. wag Verb To swing from side to side, especially of an animal's tail
  2. wag Verb To not go to school, either for a class or classes or the entire school day;1 play the wag; hop the wag; wag it.2
  3. wag Noun An oscillating movement.
  4. wag Noun A witty person.
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