Definition from Wiktionary, the free dictionary
- A crowd control technique, used by police, where a hostile group of protesters or rioters are surrounded and not allowed to disperse, sometimes with the use of temporary fencing to corral and isolate portions of the group.
- present participle of
- Amy Goodman; Marisa Holmes, Marina Sitrin, and Laurie Penny (October 3, 2011), "700 Arrested on Brooklyn Bridge as Occupy Wall Street Enters Third Week, Protests Grows Nationwide", Democracy Now!. URL accessed on October 3, 2011.