Waaaa
1.A sound made instead of "wh" or "wa". When you have lived in indonesia for like 5 years of your life and your family live in scotland and you live in high wycombe. 
2.The sound baby's make when they cry.
Malcolm: Waaaaaaat You doing tonite?
Adam: Nothing Really you?
Malcolm: Having a waaaaaaaank.
Adam:Ewwwwwwww