fast one
C1Informal, colloquial
Definition
Meaning
A deceitful or cunning act intended to trick or cheat someone.
An act of deception, often performed quickly and cleverly, that takes advantage of another person's trust or inattention. Often used in the idiom 'to pull a fast one'.
Linguistics
Semantic Notes
Nearly always used in the fixed expression 'pull a fast one (on someone)'. Rarely found as a standalone noun phrase except when referencing the idiom. Connotes a sense of cleverness and speed in the execution of the trick.
Dialectal Variation
British vs American Usage
Differences
No significant difference in meaning or usage between UK and US English. The idiom is equally common in both varieties.
Connotations
Similar connotations of slyness and underhanded behaviour in both regions.
Frequency
High frequency in informal spoken contexts in both regions. Equally well-understood.
Vocabulary
Collocations
Grammar
Valency Patterns
[Subject] pull/pulled a fast one on [Object][Subject] tried to pull a fast oneVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “pull a fast one (on someone)”
Usage
Context Usage
Business
Used to describe unethical competitive practices, e.g., 'We think their new pricing model is just a fast one to lock in customers.'
Academic
Rare, except in informal discussions about ethics, politics, or history where deceptive acts are described colloquially.
Everyday
Common in discussions about personal interactions, sports, sales, or any situation involving perceived trickery.
Technical
Not used in formal technical contexts.
Examples
By CEFR Level
- I think he tried to pull a fast one, but I was paying attention.
- Don't let him pull a fast one on you with that old car.
- The salesman attempted to pull a fast one by hiding the extra fees in the small print.
- They thought they could get away with pulling a fast one on the tax office, but they were caught.
- The seasoned negotiator was too experienced to have a fast one pulled on him during the contract talks.
- The political opponent was accused of pulling a fast one by scheduling the vote during a holiday recess.
Learning
Memory Aids
Mnemonic
Imagine a sprinter (a fast runner) suddenly changing lanes at the last second to win unfairly—they 'pulled a fast one' on the other runners.
Conceptual Metaphor
DECEPTION IS A QUICK PHYSICAL MANEUVER (e.g., a swift, unexpected move in a game).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not translate literally as 'быстрый один'. The phrase is entirely idiomatic.
- Avoid confusing with 'fast' meaning to abstain from food. No connection.
- The closest conceptual equivalent might be 'провернуть аферу' or 'кинуть', but these have stronger criminal connotations.
Common Mistakes
- Using it without 'pull' (e.g., 'He did a fast one'). Incorrect.
- Using 'quick one' instead of 'fast one'. 'Quick one' usually means a fast drink, not a trick.
- Misspelling as 'fast won'.
Practice
Quiz
What is the meaning of 'He pulled a fast one on me'?
FAQ
Frequently Asked Questions
No, the standard and only correct verb collocation is 'pull'. 'Do a fast one' is not idiomatic English.
Very rarely. It almost always has a negative connotation of deceit. In extremely casual contexts, it might be used jokingly among friends for a harmless prank, but the core meaning remains underhanded.
No, 'pull a quick one' is not a standard idiom. 'A quick one' typically refers to having a fast alcoholic drink (e.g., 'Let's have a quick one at the pub').
It is firmly informal and colloquial. It should be avoided in formal writing, academic papers, or official reports. Use synonyms like 'deception' or 'subterfuge' in formal contexts.