In a dictionary it should be defined as the "feminine of man", but this adjective has historically been directed to women, and only since the end of the twentieth century (sporadically) to gays. It is a construction based on womanizer ("donjuan, casanova, fond of seducing women") using the noun man (in this case as "male") and the relationship suffix -iego, for a "lady who conquers men without a sentimental commitment". There is a version such as "hombreriega" with a questionable construction.
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