13 obnoxious internet abreviations 1. LMAO 2. WTF (dont know if I can use that) 3. O RLY? 4. CU L8TER 5. OMG 6. STFU 7. ROTFL 8. FTW 9. ROFLCOPTER xD 10. @TEOTD 11. RTFM 12. ZOMG!!11