puff up

"He got even more angry and puffed up a bit more and looked like he was actually going to chuck me in and my daughter," she said.

“It’s a way to puff up our chests, so to speak, to show what we are doing in preserving and enhancing our biodiversity.”

The species as a whole has a variety of defensive techniques, including biting, puffing up and flattening their heads to look like a venomous snake.

I puffed up my cheeks as big as I could get them.

Forced to slow down, the man who believed “hiking is for people who can’t run” found himself huffing and puffing up a peak in Griffith Park.