I mean, to the Jews it means they can't even say the name of their god.
And since the Old Testament recognizes other gods than Abraham's ... just saying "god" can be a generic term, since no specific deity is named.
-- Person: "Goddamnit" Deity1: "Do you know who he was talking to?" Deity2: "I have no idea." Deity3: "Well, who wants to handle it? Not it!" Deity1: "Not it!" Deity3: " ... Damnit!"