Wiktionary
chase off
vb. (context transitive idiomatic English) to make someone or something go away
Usage examples of "chase off".
She hated them, and she had to resist an urge to chase off the ones below with her sling.
Usually at this hour Blobel is in his van or at quarters in town if the section is not too far out in the sticks, quaffing schnapps to chase off the morning chill.