Loon n. A sorry fellow; a worthless person; a rogue.
Loon, n. Zool. Any one of several aquatic, wed-footed, northern birds of the genus Urinator (formerly Colymbus), noted for their expertness in diving and swimming under water. The common loon, or great northern diver (Urinator imber, or Colymbus torquatus), and the red-throated loon or diver (Urinator septentrionalis), are the best known species. See Diver.
n 1: a worthless lazy fellow
2: large somewhat primitive fish-eating diving bird of the
northern hemisphere having webbed feet placed far back;
related to the grebes [syn: diver]
3: a person with confused ideas; incapable of serious thought
[syn: addle-head, addlehead, birdbrain]