To not proceed as one had planned or hoped. My plan to convince my parents that I'm responsible enough to have a car promptly backfired on me when I came home after curfew.The invading army's strategy completely backfired on them because they failed to account for the icy mountain terrain.
Fig. [for something, such as a plot] to fail unexpectedly; to fail with an undesired result. Your plot backfired on you.I was afraid that my scheme would backfire on me.