fake accent

Translations
поддельный акцент
He spoke with a fake accent to impress his friends.
Он говорил с поддельным акцентом, чтобы впечатлить своих друзей.
Definitions
A fake accent is an imitation of a particular regional or national accent that is not genuine to the speaker, often used for comedic effect, performance, or to disguise one's true origin.
Words
fake

adjective
фальшивый
accent

noun
акцент