To cause a big upset or fight.

Synonym of wouldn't hurt a fly

A fly in the family Agromyzidae, most larvae of which are leaf miners on various plants.

Bittacomorpha clavipes

Alternative form of pigs might fly

(colloquial) To get lost; to scram.

Any of the predatory flies in the family Dolichopodidae, which tend to have long and slender legs.

The Sunda flying lemur, Galeopterus variegata

A flying lemur, Galeopterus variegatus, native to Malaysia and much of the Malay Archipelago south of the Philippines

plural of Sunda flying lemur