sweep somebody off their feet

sweep (one) off (one's) feet

To charm one in such a way that they form an instant and strong romantic attraction, usually unexpectedly. A: "Is Lucy still gushing about her new boyfriend?" B: "Yeah, he must have really swept her off her feet."
See also: feet, off, sweep

sweep somebody off their ˈfeet

attract somebody very strongly because you are exciting, charming, etc: She’s waiting for a nice young man to come and sweep her off her feet.I was swept off my feet by her wit and charm.
See also: feet, off, somebody, sweep