Wag
Part of speech: verb
Definition: To swing from side to side, especially of an animal's tail 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
Part of speech: noun
Definition: An oscillating movement. A witty person.
Example sentence: My mother often told us that it is a poor dog that will not wag its own tail.
Waggle
Part of speech: noun
Definition: a wobbling motion
Part of speech: verb
Definition: To move (something) with short, quick motions; to wobble.