flag down

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Related to flagging down: flagging off
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flag down

To wave one's arms to attract someone's attention, usually to get them to stop moving. A noun or pronoun can be used between "flag" and "down." I was finally able to flag down a passing motorist to help with our stalled car. It'll take awhile to flag a taxi down. Why don't we just walk to the museum?
See also: down, flag

flag someone or something down

to signal or wave, indicating that someone should stop. Please go out and flag a taxi down. I'll be right out. She went to flag down a taxi.
See also: down, flag

flag down

Signal to stop, as in The police were flagging down all cars. This expression uses the verb flag in the sense of "catch the attention of, as by waving a flag," a usage dating from the mid-1800s; down was added in the first half of the 1900s.
See also: down, flag

flag down

v.
To signal something or someone to stop: I flagged down a taxi when it started raining. When we ran out of gas, we flagged the police officer down to ask for help.
See also: down, flag
References in periodicals archive ?
But Sarah Davies' young sons, Jason, 7, and Thomas, 4, came to her aid and dragged her to the roadside before flagging down drivers to help.
to personally lead traffic enforcers in flagging down violators.
This can lead to people illegally flagging down private hire or unlicensed vehicles posing as taxis, and it's then that trouble can occur.
Murdoch is suspected of shooting Falconio, 28, after flagging down the camper van he and girl friend Joanne Lees were travelling in on July 14, 2001.