twist somebody's arm

twist (one's) arm

To pressure or force someone into doing something. Oh, she immediately agreed to come tonight—I didn't even have to twist her arm.
See also: arm, twist

ˌtwist somebody’s ˈarm

(informal, often humorous) force or persuade somebody to do something, but not by using physical force: ‘Do you think Jane will lend us her car?’ ‘I think we could probably twist her arm.’
See also: arm, twist