Meaning of the word "forbidden fruit" in English

What does "forbidden fruit" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

forbidden fruit

US /fɚˌbɪd.ən ˈfruːt/
UK /fəˈbɪd.ən fruːt/
"forbidden fruit" picture

Idiom

something desired or pleasurable that is not allowed or is illicit

Example:
The secret affair was their forbidden fruit.
For some, staying up late feels like a kind of forbidden fruit.