Mamet

[Anne Gilbert]

Duane:

> An affectation in any movie David Mamet directs is that he has his
> characters say "in it" for "isn't it" and "done it" for "doesn't it." He
> does this regardless of a character's class or ethnicity of background.
> Outside of a Mamet movie I have never heard any group use this, which is
> why it leaps out at me in the films. Is this a usage peculiar to any
> particular dialect?

I've heard "innit", but not "donit".
Anne G