Put Hair On Someone's Chest Meaning

(idiomatic) To make a person (especially a male) stronger or more masculine or mature.

Example: 1998, Tom Becker, "School Speaker Talks About Life as Addict," Los Angeles Times, 17 Feb., p. B2 (retrieved 10 Oct. 2010):
  When Lonnie Bushey was 6 he started drinking with his father who told him it would put hair on his chest and make him a man.