flag down

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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 ?
Ranon said authorities tried to flag them down but the suspects instead sped past the checkpoint and began firing at the police.
Middlesbrough Council has now stressed the importance of pre-booking private hire vehicles - which are not allowed to pick up passengers who flag them down - and of ensuring they use only licensed vehicles.
She encouraged drivers planning to take to the road in Spain to "do their research" and continue to the next safest place if someone tries to flag them down.
Private hire vehicles cannot stop when you flag them down and must only be used for pre-booked journeys.
that skin and flag them down and when they stop you swallow whole
Last Sunday night, a 38-year-old woman was raped after motorists ignored her attempts to flag them down.
Drivers ignored a woman who tried to flag them down after fleeing a sex attacker.
They fear passengers could mistake the private cars for black cabs and wrongly try to flag them down.
When I was in the South and the white troopers would follow me, I'd get out of the car and flag them down, asking for the next gas station.
I dread to think what would have happened if I hadn't been available to flag them down or on hand to provide directions.
Only London-style black cabs are allowed to pick up passengers who flag them down in the street without booking in advance.