any of an order (Gaviiformes) of fish-eating, diving birds, with a sharp bill and webbed feet, found mainly in subarctic regions: noted for its weird cry
noun
a clumsy, stupid person
a crazy person
Scot.
a boy
a harlot
Archaic
a person of low rank
a rogue
See loon in American Heritage Dictionary 4
(lo͞on)
noun
Any of several fish-eating, diving birds of the genus Gavia of northern regions, having a short tail, webbed feet, and a laughlike cry.