Definitions by cf is a boss

flock of birds 

Flipping someone off with both of your hands at once and waving hands and middle fingers while doing it. Used when just one finger isn't enough. originated from the term flipping the bird

That guy cut me off in traffic without using his signal so I showed him a flock of birds-one middle finger just wasn't enough.

flock of birds by cf is a boss July 24, 2011