give the game away

US /ɡɪv ðə ɡeɪm əˈweɪ/
UK /ɡɪv ðə ɡeɪm əˈweɪ/
"give the game away" picture
1.

membocorkan rahasia, mengungkapkan kejutan

to reveal a secret or surprise, often unintentionally

:
Don't give the game away by telling her about the surprise party.
Jangan membocorkan rahasia dengan memberitahunya tentang pesta kejutan.
His nervous laughter almost gave the game away.
Tawa gugupnya hampir membocorkan rahasia.