a plum in your mouth
US /ə plʌm ɪn jʊər maʊθ/
UK /ə plʌm ɪn jʊər maʊθ/

1.
ada buah plum di mulut, berbicara dengan gaya yang dibuat-buat
an affected way of speaking, as if one has a plum in one's mouth, often associated with upper-class accents
:
•
He speaks with a plum in his mouth, making him sound very aristocratic.
Dia berbicara seolah-olah ada buah plum di mulutnya, membuatnya terdengar sangat aristokratis.
•
Her affected accent sounded like she had a plum in her mouth.
Aksennya yang dibuat-buat terdengar seperti dia memiliki buah plum di mulutnya.