Uhhh...I live in Nova Scotia (yes, that is Eastern Canada) and I've never heard some one say 'aboot'. I'm guessing you mean like, the word 'a' then the foot wear? If so, I've never heard it. But maybe you mean the word 'a' and then 'boat', as in sailboat? If that's what you mean, then yes, that gets said in Eastern Canada all the time.