* as friendly as a prison's door
Expression used often by Adults/old people
Used to describe someone being rude or cold.
"Il ne m'a pas adressé un seul sourire du séjour, il est aimable comme une porte de prison."
"He didn't smile at me the whole trip, he is as friendly as a prison's door."
Added October 2020 by zecdanou
11 out of 11 French speakers have heard this