To have a vicious fight or altercation.

Third-person singular simple present indicative form of make the fur fly

To observe or allow a fight or upset that results from a situation.

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

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

(UK, slang, obsolete) To steal lead from the roof or other parts of a building.