upset (one's) plans

upset (one's) plans

To ruin, thwart, or interfere with one's plans, intentions, or goals. These new regulations could upset our plans of expanding into the European market. I had always dreamed of moving to Japan to teach English, but the pregnancy upset my plans a bit.
See also: plan, upset

upset someone's plans

Fig. to ruin someone's plans. I hope it doesn't upset your plans if I'm late for the meeting. No, it won't upset my plans at all.
See also: plan, upset