locust, n.Definitions

A Locust is a sky prawn.

A Locust is a grasshopper in the throes of mob mentality

A Locust is a flashmobbing grasshopper.

A Locust is a starving grasshopper.

A Locust is a flying pirahna

A Locust is flying protein.

Locust is a name refering not to the insect (grasshopper) but to the insect engaged in mass swarming.

A Locust is like a traveling a Brit, a swarming insect that devoures everything in its path.