Or you can use the extensive array of
Captain Archibald Haddock's expletives(from Tintin). More listed here -
Just invoke atheist names. "For the love of Sagan, will you get OFF the Ingersolling cell phone!? Don't make me go Hitchens on your ass. And clean up all this Shermer you leave all over the place."
Great googly moogly - my mothers favorite
Jesus titty fucking christ
Hokey spoons!! - not sure where I heard that one.
Oh "your' god!! - Futurama