blow out air loudly on account of exertion

he was huffing under a heavy load

express one's feeling of petty annoyance

‘Huh!’ Nanny huffed

sniff fumes from (petrol or solvents) for a euphoric effect

it is important to educate young people about the dangers of huffing inhalants

(in draughts) remove (an opponent's piece that could have made a capture) from the board as a forfeit

a fit of petty annoyance

she walked off in a huff