big mouth

US /ˈbɪɡ ˌmaʊθ/
UK /ˈbɪɡ ˌmaʊθ/
"big mouth" picture
1.

mulut besar, tukang canang

a person who talks too much, especially about things that should be kept secret

:
Don't tell him your secret; he's a real big mouth.
Jangan beritahu dia rahsia awak; dia memang mulut besar.
Her brother is such a big mouth, he always spills the beans.
Abangnya memang mulut besar, dia selalu membocorkan rahsia.