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1. The skill or ability of a man (or woman) to show off their masculinity.

2. A marker of the gender roles that tend to separate men and women.

3. It may be something a person takes extreme pride in.
Anytime a man (or woman) is showing off/flexing their muscles they are exhibiting a mark of their manability.

Men who show off anything they have that makes them appear more masculine and strong are showing off their manability.
by crystalx February 04, 2010
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