"ma·cho [mah-choh] adjective, noun, plural -chos.
1.having or characterized by qualities considered manly, esp. when manifested in an assertive, self-conscious, or dominating way.
2.having a strong or exaggerated sense of power or the right to dominate.
3.assertive or aggressive manliness; machismo.
4.an assertively virile, dominating, or domineering male.
[Origin: 1925–30, Americanism < Sp: lit., male < L masculus; see masculine]
5. My Boxer
Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006."