sit-down

istumalakko Intended to be done while sitting.
An act of sitting down, especially with other people in some form of social exchange.
A sit-in, a protest of civil disobedience by people sitting and refusing to move.
2003 (revised edition), (w), A Peoples History of the United States'', HarperCollins 2005, p. 401:

The sit-downs were especially dangerous to the system because they were not controlled by the regular union leadership.

I helped organize a sit-down outside an Oxford hairdressers' shop that refused black female customers.