I’ve looked a dozen different places and I can’t figure it out.
http://chiffboard.mati.ca/viewtopic.php?t=2477&highlight=pronounce+feadog
The ó (hold ALT down and push 0243) doesn’t mean an emphasis, it affects how you pronounce it. Beyond that, that’s all I know. I think.
Flea-dog 
Fa (as in fat) - doge (hard g, rhymes with dole).
Hope that makes sense!
Deirdre
Means ‘whistle’, by the way - tin whistle is feadóg stáin, flute is feadóg mhór (lit. ‘big whistle’).
on’t worry if you can’t get it right. I spent three months in Ireland and 6 weeks in language classes, and still had natives laughing at me whenever I tried.
It simply wasn’t meant to be. sigh