From Longman Dictionary of Contemporary Englishflush somebody/something ↔ out phrasal verb1 to make someone leave a place where they are hiding The government is determined to flush out the terrorists.2 to clean something by forcing water through it The heating system needs to be flushed out once a year. Drinking water helps flush out toxins from the body. → flush→ See Verb table
Examples from the Corpus
flush out• If the actor was in there, then Creed wanted to flush him out.• Listen: I want to flush him out.• They're doing checks to flush them out.• To get rid of it you usually need to remove the radiator so you can flush it out.• We have a greater chance of being able to flush this assassin out.• By flushing him out on to the court and into the glare of the media, who are the provocateurs?• We have flushed him out today.• Tape Worm Those new-age prats think they can flush me out with a bit of colonic irrigation. 