Word.ws English Dictionary

blot one's copybook

blot one's copybook is the alternative spelling of blot one's copy book.

Meaning of blot one's copy book

Verb

blot one's copy book (third-person singular simple present blots one's copy book, present participle blotting one's copy book, simple past and past participle blotted one's copy book)

  1. (idiomatic) To damage one's own reputation through bad behavior.
    • Now, it was the College that had blotted its copybook1935, Dorothy L. Sayers, Gaudy Night

Forms of blot one's copybook

third-person singular presentblots one's copybook
present participleblotting one's copybook
past participleblotted one's copybook
pastblotted one's copybook

Questions about blot one's copybook

What is blot one's copybook the alternative spelling of?
Blot one's copybook is the alternative spelling of blot one's copy book.

Words near blot one's copybook in the dictionary

  1. blossomworm
  2. blossomy
  3. blot
  4. blot on the escutcheon
  5. blot one's copy book
  6. blot one's copybook
  7. blot out
  8. blot test
  9. blot tests
  10. blot up
  11. blotch

Source and license

Adapted from Wiktionary: blot one's copybook (page history and authors); blot one's copy book (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “blot one's copybook.” Word.ws, https://word.ws/blot_one%27s_copybook. Based on Wiktionary, CC BY-SA 4.0.