French
French speaking countries
ne pas être fût-fût *
* not to be clever-clever
Expression used here and there by Some People
Used to refer to a dumb person or a person doing stupid things, but it's lighter than saying that a person is stupid. It comes from "fûté", that means "clever".
"Cette fille n'est vraiment pas fût-fût; elle pense que les lions sont des animaux marins!"
"That girl really isn't clever-clever; she thinks that lions are marine animals!"
Added August 2020 by do
6 out of 10 French speakers have heard this