toe-curling
adjective UK informal uk/ˈtəʊˌkɜː.lɪŋ/ us/ˈtoʊˌkɝː.lɪŋ/
令人极其尴尬的;使人十分害臊的
making you feel extremely embarrassed and ashamed for someone else
I saw the worst comedy act I've ever seen last night - it was absolutely toe-curling! 昨晚我看到了我所见过的最糟糕的喜剧表演——真替他害臊！