To breathe heavily or with difficulty, often as a result of exertion. After running up the hill, she began to huff and puff, trying to catch her breath.
To express annoyance or anger, often by making a sound or gesture. He huffed in frustration when he realized he had missed the last bus.
To blow or expel air forcefully. The wolf huffed and puffed, trying to blow the house down.
To remove an opponent's piece in checkers as a penalty for failing to capture when able. According to old tournament rules, you could huff your opponent's checker if they missed a jump.
Slang. To inhale the vapours of solvents, aerosols, or other volatile substances in order to become intoxicated. Teenagers were caught huffing paint thinner behind the warehouse.