Peppercorn

[Rihanna]

a small, dried fruit that looks like a seed and is crushed to produce pepper

[Michiko]

The dried berry of a climbing vine, used whole as a spice or crushed or ground to make pepper.

[Sonia]

[Decay] [in between your teeth] that resembles an accidentally [lodged] peppercorn left over from a meal. Typically black and dirty looking teeth.

[Julene]

Something [worthless], not a [good enough] thing in [Contracts] law