Ok, now this is a really boring, unimportant question but it's bugged me for a long time. Saying this in a sentence eg 'go to the shop straight the way' (rather than straight away) always sounds wrong to me but I hear so many people say this so often, including teachers and people who speak very eloquently that I'm starting to think it must be grammatically correct, but I can't understand why it sounds wrong to me. I know this is a really daft question so don't want to embarrass myself by asking someone I know, and I'm absolutely sure that if anyone can tell me the answer, it's a mner.
So, is 'straight the way' grammatically correct or not?