run one on
C1 slang separable transitive
In simple words
To lie to or trick someone, usually to get something from them
Meanings
1 C1
idiomatic
slang
(Slang) To deceive or trick someone, usually for personal gain
"Don't try to run one on me — I know exactly what you're doing."
Grammar: separable
Usage notes
Common in informal and slang registers, particularly in urban American speech. The 'one' refers to a trick or scam. Used in contexts of street talk or colloquial storytelling.
Commonly used with
trick scam con hustle fool deceive
Forms
Base
run one on
I/you/we/they
3rd person
runs one on
he/she/it
Past simple
ran one on
yesterday
Past participle
run one on
have + pp
-ing form
running one on
continuous
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