WhatsApp Chat abbreviations:
1. G2G/GTG - Got to go
2. BRT - Be Right There
3. BTW - By The Way
4. B4N - Bye For Now
5. FYI - For your information
6. HBD - Happy Birthday
7. LOL - Laugh out loud
8. TTYL - Talk to you later
9. WRU - Where are you?
10. WBU - What about you?
11. DND - Do not Disturb
12. ILU - I Love You
13. OMG - Oh my God!, Oh my Goodness!
14. ROFL - Rolling on the floor laughing
15. IMO - In my opinion