A culinary and nutritional term for several groups of non-piscine, non-tetrapod, aquatic animals that are used as a food source. The term often exclusively refers to edible aquatic crustaceans, bivalve mollusks and cephalopod mollusks; but sometimes echinoderms may be included as well.
A fisheries and colloquial term for an aquatic invertebrate having an inner or outer shell, such as a mollusc or crustacean, especially when edible.
A small creature which has a low cost to put into play, often used in a swarm with other such creatures.
A geek or nerd, especially a computer user with a deficient social life.
Someone weak and unimportant, a wimp.