Mummerset
/ˈmʌməsɛt
/noun [mass noun]
An imitation rustic West Country accent used by actors.It sounds to me like the most affected and clueless type of Mummerset but I'm no expert....
- I hope they don't give her an exaggerated Mummerset accent in the film.
- An example of Mummerset would be ‘Baint be thet bor’ (It is not that boy).
Origin
1950s: probably from mummer, on the pattern of Somerset.