n.: make bad blood, make ill blood, stir up bad blood, stir up ill blood, make bad blood between persons, make ill blood between persons, stir up bad blood between persons, stir up ill blood between persons, sow discord (=sow the seeds of discord), foment dissension, sow dissensions (among) (=sow the seeds of dissension), play off one against the other, play off one against another, provocation and estrangement