[ID: 4 stripes of blue gradients. End ID.] 

I know there’s femme/fem and butch versions for this identity/expression preference. It’s often criticized as something toxic and prejudicial, but I know masc4masc practicing it in a healthy manner too, so the definition should be neutral in nature.

Masc4Masc (masc is short for masculine): a masc folk who is up to date with other masc folks, and sometimes prefer masculinity over femininity. It’s regardless of gender. Similar butch4butch but some masc folx don’t see themselves as butch.

Masc may be either internal or external. Depends from person to person. – AP