1. When one uses threatening or agressive words or gestures to intimidate someone, but really is scared and does not have the fortitude to act on said actions.
"Boy!!! I will throw you through that window!!!"
"Aww, no you won't. You just be wolfin'."
verb: pretending to be ignorant, to not know the answer; usually to avoid having to answer more questions.
The teacher asked a student to state one of the rights listed in the First Amendment.
"I don't know any," said the student.
"He's duncin her," whispered his friend. "He knows them all!"