Underbelly

[Britney]

[bloody awful] [cack] - the lowest of [the low].

[Rihanna]

The soft underside or abdomen of an animal.

[Kit]

The second stomach of [fat people] that hangs below the normal [waistline], usually appears when obese women try and hide their huge gut by [pulling up] their pants.

[Michiko]

[Portion] of human body - under the [belly button]. Cunt. Mostly [hidden] in the garments, all want to see, but few got chance

[Cami]

the weakest or most unpleasant part of something: