One of my cousins who was raised in San Diego says tyranny "tie-run-ee" btw.
And I just made one of my friends from houston pronounce the word, but it didnt come out tie-run-ee. he said it tier-rannn-ee.
Now that I think about it, Although I'm a "northerner"
It's possible I'd say it like that after a couple beer too!
Maybe not.. Hmm, now you got my wondering (wun der in')