Why's there no tomboy equivalent for men?

Hey everyone want your opinions but why is there no accepting equivalent of tomboy for men? Like being a tomboy is perfectly accepted for women but for men everyone just expects them to be masculine and not even a very feminine man?

I feel like we should call it Tomgirls. If this existed men would probably be happier and more easy going instead of their aggressive self usually.

Why's there no tomboy equivalent for men?
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