flying picket
noun/ˌflaɪɪŋ ˈpɪkɪt/
/ˌflaɪɪŋ ˈpɪkɪt/
(British English)- a worker on strike who can go quickly to other factories, etc. to help persuade the workers there to join the strike
- Flying pickets arrived from all over the country.
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flying picket