The Below list is from an article on CNN from January of 2015.  Every parent should know these in case they are being used on their phone.

1. IWSN – I want sex now

2. GNOC – Get naked on camera

3. NIFOC – Naked in front of computer

4. PIR – Parent in room

5 CU46 – See you for sex

6. 53X – Sex

7. 9 – Parent watching

8. 99 – Parent gone

9. 1174′ – Party meeting place

10. THOT – That hoe over there

11. CID – Acid (the drug)

12. Broken – Hungover from alcohol

13. 420 – Marijuana

14. POS – Parent over shoulder

15. SUGARPIC – Suggestive or erotic photo

16. KOTL – Kiss on the lips

17. (L)MIRL – Let’s meet in real life

18. PRON – Porn

19. TDTM – Talk dirty to me

20. 8 – Oral sex

21. CD9 – Parents around/Code 9

22. IPN – I’m posting naked

23. LH6 – Let’s have sex

24. WTTP – Want to trade pictures?

25. DOC – Drug of choice

26. TWD – Texting while driving

27. GYPO – Get your pants off

28. KPC– Keeping parents clueless