Indicates intense physical activity; you're likely to hear it after someone runs or lifts heavy objects. She started to puff and pant after sprinting to catch the bus.
Pro Tip 2/3
Exertion Indicator
Reflects a state of tiredness or exertion, showing someone's effort in an activity. The movers had to puff and pant hauling that piano upstairs.
Pro Tip 3/3
Not Literal
Sometimes used figuratively to express the difficulty of non-physical tasks. I puffed and panted through the difficult math problems.