macho
adjective
[ ˈmatʃəʊ ]
• masculine in an overly assertive or aggressive way.
• "the big macho tough guy"
macho
noun
• a man who is aggressively proud of his masculinity.
• "I realized just what a macho I was at heart"
Origin:
1920s: from Mexican Spanish, ‘masculine or vigorous’.
MACHO
noun
• a relatively dark, dense object, such as a brown dwarf, a low-mass star, or a black hole, of a kind believed to occur in a halo around a galaxy and to contain a significant proportion of the galaxy's mass.
Origin:
1990s: acronym from Massive (Astrophysical) Compact Halo Object .
