I don't say Oh, my allah! Or my allah. If you make a reference to a god, IMO, than you believe in it whether you want to admit it or not.
That's a pretty bad example, because "Allah" is a name of a specific deity, whereas, in your first post, you asked why people said "Oh my god" and "Oh my lord". God and lord are both nouns which could refer to any number of deities (or even people, in the case of "lord").
Alpha, I do think though that many athiests are not as convinced as they claim they are. Many athiests will admit, that when they are in dire trouble, they will resort to prayer, sometimes a god seems to be the only way out of some situations, are at least the only way out that might be accessed in an emergency. It is not hard to understand, that if an athiest were to fall of a cliff, that he might be expected to think in his last moments: "Oh god, I'm sorry, please spare me!" instead of thinking: "Gee, I wish there were a god!"
I do not think that such expressions make one a beleiver, but for that moment, there is some measure of faith, an admitance of the possibiity that God might exist. Maybe that is what Parker is referring to in his inefficient way.
I would argue that this is more of someone looking for control in a situation where they don't have any. For example, if a Muslim is put in a dangerous situation, they don't suddenly convert to Christianity and ask Jesus to save them. An ex-Muslim atheist would resort to asking Allah for help as well. Someone who was not religious at any point might not ask anyone.
Insulting to who? I haven't insulted anyone, let alone you if that is what you are intimating.
I'm assuming "foo...uny" is a misspelling of starting to say "foolish", then switching to "funny", but I could be wrong. That being said, if I referred to Christianity as either foolish, or even funny, I imagine quite a few people would be insulted.
As for atheists, what else can you be when you deny the most provable existence and events in the history of mankind but foo...uny?
That is debatable... and a topic for another thread!
Then why don't they say "oh my mom! oh my dog! or something they know exists? They don't because they know in their heart of hearts that GOD does exist. Out of the mouth comes the things of the heart as the saying goes.
I already answered that. There is a lot of cultural history in saying "Oh my God.", and not "Oh my mom". Also, as a counter example, I have seen many people online say things like "Oh my ghost" or "oh my gods". Does this mean they believe in poltergeists and/or are secretly polytheists?