Mwah
Updated: 07/20/2017 by Computer Hope
Mwah, mwa, or muah pronounced moo-waah; like the sound you would make when giving someone a kiss, is a term used online in chat to express a kiss. The example below shows how mwah could be used in chat.
User1: I need to go cya later.
User2: Sounds good, LYL... MWAH!
User1: Ahhh thanks.