A few guesses:
This sounds like Yiddish. The first part is almost certainly 'aroys' which means 'out'.
The last word may be 'da', which means 'here'. So, 'Get out of here' does seem to be what this means.
The middle word may be 'mir', meaning (to) 'me', so the whole phrase might have the meaning oof 'Get out (of my way and get out) of here'.