A pronunciation which has been creeping for some time now, used by female TV news presenters, is adding an extra syllable to words such as 'three' and 'thread' - so they become 'the-ree' and 'the-read'. Perhaps it's done for emphasis, or perhaps it's because they never learned the correct pronunciation in the first place. (I am inclined to believe the latter)

Interestingly, the blokes don't do it. It seems to be girl thing.

Either way, it gives me a strong does of the irrits.