When somebody goes absolutely crazy, out of their mind and giving you threats to beat your ass or shoot you or rob you and so on.... Or the other is if you are simply going to pay a visit to Detroit, Michigan.
A: I'm Going to fucking beat your sorry ass you mother fucker! Oh and I'm gonna chase you around with my AK- 47 Bitch!
B: oh I think she has "gone detroit"! man....!
C: Pack your things, we are heading to the State of Michigan.
D: Oh Yeah "gone detroit!" Yippie!