have a plum in (one's) mouth(redirected from have a plum in their mouth)
have a plum in (one's) mouth
To speak in a manner that is indicative of a high social class. Primarily heard in UK. Because he always sounds like he has a plum in his mouth, none of us working-class sods can stand to listen to him.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
have a plum in your mouthhave a rich-sounding voice or affected accent. British
Farlex Partner Idioms Dictionary © Farlex 2017