the feeling in English of "whatch where you`re going asshole" in the
Tokyoish area of Japan?

Not looking for a direct translation but the sort of slang that will
let some idiot know - hey watch it you are about 3 seconds from
getting your ass kicked.

"Whatch where you`re going asshole" said in English didn`t have the
desired effect although me giving one of the offenders an impolite
shove did get a long string of bows and sumimasens.

Wife tells me it is something like "aha boka" if we were in the Kansai
area but she doesn`t know what you would say here near Tokyo.