Definition, Meaning & Synonyms

there-are-no-flies-on-someone

idiomatic expression

ðɛr ɑr noʊ flaɪz ɑn ˈsʌmˌwʌn

Definition

A phrase indicating that someone is sharp, clever, or not easily deceived.

Examples

Even though he seems quiet, there are no flies on him; he knows exactly what’s going on around him.
She may appear naive, but believe me, there are no flies on her—she understands the risks involved.
They thought they could trick him, but they soon realized that there are no flies on him.

Meaning

This idiom is used to describe a person who is astute and aware of their surroundings, often implying that they cannot be easily fooled or taken advantage of.