hound (someone) out (of some place)
To hunt, chase, or pursue someone relentlessly, until they leave a particular place. Police hounded the suspect out of his hideout and were able to arrest him en route to Mexico.
hound someone out
(of something or some place) Go to hound someone from some place.
hound something out of someone
Fig. to force someone to give information. We are going to have to hound the information out of her. We hounded the combination to the safe out of them.