man i was supposed to ride with them, but at the last minute they pulled a flim-flam and left me
to be indecisive, to throw an unexpected monkeywrench into a plan, to change one's mind at the drop of a dime
"man i was supposed to ride with them, but at the last minute they pulled a flim-flam and left me" What is the definition of "flim-flam"?