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Synonyms

fast one

American  

noun

Informal.
  1. a shrewd action, especially when unscrupulous or dishonest; an unfair trick, deceitful practice, dishonest dealing, etc..

    He pulled a fast one on me by paying me with a worthless check.


Etymology

Origin of fast one

An Americanism dating back to 1920–25

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Now they worried that Tahnoon was again playing a fast one.

From The Wall Street Journal Jul. 19, 2026

Instead, only the foreman signed off on it — the legal equivalent of pulling a fast one on the judicial process.

From Salon Dec. 14, 2025

A publicist friend texted me afterward: “That’s where Culkin belongs. If you gave him lead, you’d be saying that he was trying to pull a fast one by going supporting.”

From Los Angeles Times Jan. 1, 2025

Alonso's actions in Hungary came in response to Hamilton pulling a fast one on the Spaniard.

From BBC Aug. 2, 2023

He was a good learner, but not a particularly fast one, so he had to study.

From "The Princess Bride" by William Goldman

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