Interesting. Some of my students know ASAP as an English word that means you need it right away but are unaware of the origins, but that's going cross-linguistic so it doesn't really count. OMG might fall under the "god" taboo, I knew some older folks who would say things like "Just fix the gee dee thing already," with gee dee (G-D-) standing in for "God-damned". But we're in a time when the percentage of our daily communication that is non-verbal, i.e. written, has ramped up dramatically. When I was in boot camp in the late 80s (the height of my letter-writing phase since phone use was forbidden) I was writing 3-4 pages of handwritten letters a week. I probably average that much a day in email, forum, and social media postings now. Remember the controversy (for illustrative purposes only) over Hillary Clinton's emails? 31,380 deleted messages. We don't know how long they were, but that's a lot of non-verbal communication for patterns to slip over from into our speech.