its not 'aboot' that we so stereotypically have been predicted to say. ive noticed that myself and quite a few of my friends, instead of saying 'ub-out' say 'ub-ah-oot'
i dont know if that makes much sense, but we still say the 'out' bit, and the 'ah' following the lteter be, but we put a little more oooo emphasis on words like that. i myself say out with a little more ooish sound than my cousins (live in colarado) who say the more short o-ish noise, like ow-t rathre than ow-oo-t
hope that helps? i mean if the word is involving out, we tend to use the letter 'u' as an ooo sound rather than an uh sound.
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[teletubbie voice] BIG HUG!!!! [/teletubbie voice]