Wiktionary
drive off
n. (alternative spelling of drive-off English) vb. (context idiomatic English) To force to leave or go away.
WordNet
drive off
v. force to go away; used both with concrete and metaphoric meanings; "Drive away potential burglars"; "drive away bad thoughts"; "dispel doubts"; "The supermarket had to turn back many disappointed customers" [syn: chase away, drive out, turn back, drive away, dispel, run off]