blot one's copybook

B b

Definition of blot one's copybook words

noun blot one's copybook to spoil one's reputation by making a mistake, offending against social customs, etc 3

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

A common word. It’s meaning is known to most children of preschool age. About 95% of English native speakers know the meaning and use the word.

Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

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