Wiktionary
beat feet
vb. 1 (context idiomatic English) To run. 2 (context idiomatic English) To flee.
Usage examples of "beat feet".
I beat feet to the back bedroom and bored through a bunch of books I'd flung to the floor.
He'd beat feet back to The Place, and by the time he'd gotten there, the snapshot image of what he'd seen—.
Wouldn't your life be a lot easier if that miserable Mavis and sleazy Baumer beat feet?
Or we can make a break now and beat feet across that rice paddy dike we came in on.
Billy had started to come with them and then decided to beat feet.
I just beat feet the hell out of there, got into my car, and tore ass right over to the provost marshal.