#1 stir up v. try to stir up public opinion. wn #2 stir up v. arouse or excite feelings and passions; "The ostentatious way of living of the rich ignites the hatred of the poor"; "The refugees' fate stirred up compassion around the world"; "Wake old feelings of hatred". wn #3 stir up v. change the arrangement or position of. wn #4 stir up v. provoke or stir up; "incite a riot"; "set off great unrest among the people". wn