Meaning of WORK IN

WordNet Dictionary
	Definition:		[n]  occasion when workers continue to work as a protest against e.g. proposed dismissal or closure of the factory [v]  add by mixing or blending on or attaching; "work in the butter and the dough will get the right consistency"; "In his speech, the presidential candidate worked in a lot of learned words"
	See Also:		add, demonstration, manifestation