What does mwa mean in text talk?

Answer 1

Mwa can mean one of 2 things:

1) 'Mwa' is the word for kissing. (Kissing in your text)

2) 'Mwa' is the French word for me. So for example 'IT'S ALL ABOUT MWA!' could be put in a text message instead of me.

I hope I've helped. :-]