Mwah

[Little_Girl]

the paticular sound that a fretless bass guitar makes when played.

[Little_Girl]

The sound of a great big kiss

[PussyCat]

To make a kissing noise without [actually] kissing.

[Little_Girl]

an online kiss (the sound a kiss would make)

[Britney]

A sound or a word for a kiss. Also the beginning of the laugh mwah ha ha ! ! ! ! Usually used on msn.

[Tanya Shivari]

MWAH is an onomatopoeiaic word (a word that imitates the sound that it describes) for an affectionate type of kiss.

It is often used when sending a text message or email. Saying it out loud is the best way to understand this definition.

[Tina]

A fancy way to say ME