Monday morning quarterback
noun/ˌmʌndeɪ ˌmɔːnɪŋ ˈkwɔːtəbæk/, /ˌmʌndi ˌmɔːnɪŋ ˈkwɔːtəbæk/
/ˌmʌndeɪ ˌmɔːrnɪŋ ˈkwɔːrtərbæk/, /ˌmʌndi ˌmɔːrnɪŋ ˈkwɔːrtərbæk/
(North American English, informal, disapproving)- a person who criticizes or comments on an event after it has happened
“星期一早上的四分卫”；事后指手画脚的人 Word OriginThe quarterback directs the play in an American football match and matches are usually played at the weekend.