make head swim
make (one's) head swim
1. To make one feel very dazed, bewildered, or shocked. He was so overwhelmed with information on his first day on the job that it was making his head swim. Looking at all the legal mumbo jumbo in these contracts always makes my head swim.
2. To cause one to feel lightheaded, dizzy, or delirious. The fumes from these cleaning products are making my head swim. Tall heights make my head swim, so I try to avoid them as much as possible.
make someone's head swimand make someone's head spin
1. Fig. to make someone dizzy or disoriented. Riding the merry-go-round makes my head spin. Breathing the gas made my head swim.
2. Fig. to confuse or overwhelm someone. All these numbers make my head swim. The physics lecture made my head spin.