Tending to bite.
Causing a stinging sensation.
Cutting or incisive.
A bite-sized snack.
An instance of something being bitten.
Silly, especially at an inappropriate time or in an inappropriate manner.
Having no reasonable prospect of success because its claim is without merit, lacking a supporting legal or factual basis, while the filing party is, or should be, aware of this.
Of little weight or importance; not worth notice; slight; trivial.