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

1.
ada buah plum di dalam mulut, bercakap 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 bercakap seolah-olah ada buah plum di dalam mulutnya, menjadikannya kedengaran sangat aristokratik.
•
Her affected accent sounded like she had a plum in her mouth.
Aksennya yang dibuat-buat kedengaran seperti dia ada buah plum di dalam mulutnya.