toe-curling adjective2 •Causing feelings of acute embarrassment.Toe-curling for some, split-toe shoes have recently been seen in the most high fashion places. — 2020 •Causing feelings of arousal or excitement (especially sexual).He sipped his wine, flashed a toe-curling smile at the waitress as she picked up his uneaten plate, then gave me a somewhat darker look. — 2007 formsmore toe-curling · most toe-curling