Certain aphids (Aphidoidea), commonly known as greenfly in Britain and the Commonwealth
Lucilia sericata, common green bottle fly
especially, Myzus persicae, green peach aphid
Odontomyia chloris (syn. Musca chloris)
Tabanus nigrovittatus, a biting horsefly more commonly known as the greenhead horsefly, greenhead fly, or greenhead
Any of several kinds of common insects green in color
Any fish of the perciform family Haemulidae.
A short snorting sound, often to show disapproval, or used as a reply when one is reluctant to speak.
An infantry soldier.
A dessert of steamed berries and dough, usually blueberries; blueberry grunt.
A person who does ordinary and boring work.
The amount of power of which a vehicle is capable.
The snorting cry of a pig.
To break wind; to fart.
To make a grunt or grunts.