Word.ws English Dictionary

napkin math

napkin math noun: the act of performing quick mathematics often as a means of estimation, as if done on the back of a napkin (or in one's head).

Noun

napkin math (uncountable)

  1. (Canada, US) The act of performing quick mathematics often as a means of estimation, as if done on the back of a napkin (or in one's head).
    • Based on my napkin math—and keep in mind I am terrible at math—if you made every conscious choice to do right, your highest potential “life grade” is a D once your bad habits are subtracted.2018, Levi Lusko, I Declare War: Four Keys to Winning the Battle with Yourself, page 124

Questions about napkin math

What does napkin math mean?
Napkin math means the act of performing quick mathematics often as a means of estimation, as if done on the back of a napkin (or in one's head).
What part of speech is napkin math?
Napkin math is a noun.

Words near napkin math in the dictionary

  1. napiform
  2. Napili-Honokowai
  3. naping
  4. napitane
  5. napkin
  6. napkin math
  7. napkin rash
  8. napkin ring
  9. napkin rings
  10. napkined
  11. napkinette

Source and license

Adapted from Wiktionary: napkin math (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: “napkin math.” Word.ws, https://word.ws/napkin_math. Based on Wiktionary, CC BY-SA 4.0.