What is a penguins chuff?

Answer 1

Chuff has two main meanings. It means a rustic; rude and insensitive person, boor; cheap or stingy person.

"Chuff" is also a regular, sharp puffing sound. Normally it applies to the sound of a steam engine's "wooof-wooof-wooof" sound, which increases in frequency as the engine picks up speed. Chuff has been applied to the penguin's frostly white breaths when exhaled into the cold arctic air, or to their rate of breathing, slow when meandering, and fast and heavy when evading orca whales, for instance.

It has been incorrectly applied to a penguin's reproduction organ, in slang.