1. half-man, half-goat: in Greek mythology, a wood-dwelling creature with the head and body of a man and the ears, horns, and legs of a goat. Satyrs were characterized as being fond of lechery and drunken merriment. Roman equivalent faun
2. man displaying inappropriate sexual behavior: a man who displays inappropriate or excessively sexual behavior
3. zoology butterfly: a brown or gray butterfly with spotted wings. Family Satyridae.
[14th century. Via French< Latin satyrus< Greek saturos]