Definition of "mane"

mane¹

/meɪn/

noun
plural manes
1. Longer hair growth on back of neck of an animal, especially a horse or lion
  Quotations
  Before they went to see Glinda, however, they were taken to a room of the Castle, where Dorothy washed her face and combed her hair, and the Lion shook the dust out of his mane, and the Scarecrow patted himself into his best shape, and the Woodman polished his tin and oiled his joints.
  1900 May 17, L[yman] Frank Baum, chapter 23, in The Wonderful Wizard of Oz, Chicago, Ill., New York, N.Y.: Geo[rge] M. Hill Co.
2. Long or thick hair of a person's head.
3. Part of a naval sword between the tang button and the quillon.

mane²

noun
1. (slang, African-American Vernacular) Alternative form of man (suggesting an AAVE accent)