I'm not sure what fiction you mean. The word "fiction" is not an idiom -- it's a word and you can look in a dictionary to find it's meaning. There are too many idioms in works of fiction to name here. Click the related link to see some idioms.
an idiomatic expression
idiomatic expression
"Turn a deaf ear" is an idiomatic expression meaning to ignore or pay no attention to something.
Idiomatic expression
humbly
"You" is not an idiom. It is a pronoun.
Jasjs
Give me 1 example of idiomatic expression
This expression means real and simple.
yes it is
to support
Cockney-stink