Whiny

[Jessica]

an adjective describing a person prone to complaining.
Somebody who seems determined to [gripe].
[Petulant].
Everybody who defined [106],900 Iraqis

[exinilu]

complaining a lot in an annoying way, especially in a high, sad voice:

[Jason Yan]

Having a drawn-out, high-pitched, unpleasant sound.