1. mwah - Noun
2. mwah - Interjection
mwah
(often Internet slang) The sound of a kiss to indicate blowing a kiss to someone.
Thanks guys. 3 kisses for you all: mwah mwah mwah!
mwah (uncountable)
The hallmark sound of a fretless bass guitar played with a certain technique, where treble frequencies increase gradually after the attack.
Play it again, but with more mwah this time.