I am not sure if this is possible. I would like to use a metonymy with an idiom, and it doesn't seem to be something people ever did, so it feels wrong.
I have the following sentence:
He was in the middle of our fedora hats celebrating our victory.
I am using it to mean the following:
He was in the middle of our (mafia) family celebrating our victory.
Not only it sounds weird, but it sounds wrong. I don't think there's something I did wrong, but the combination of the two makes it really weird. So can we combine the two or not?