english
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general::
Phrase(s): wipe someone’s slate clean [and] wipe the slate clean Fig. to get rid of or erase someone’s (bad) record. (As if erasing information recorded on a slate.) • I’d like to wipe my slate clean and start all over again. • Bob did badly in high school, but he wiped his slate clean and did a good job in college.
McGrawhill's American Idioms And Phrasal Verbs