A microlabel or subcategory is an identity that falls under the umbrella of a larger identity and cannot stand on its own. For example, an apothisexual person is someone who is asexual and sex-repulsed. If someone says they are apothisexual, it is also implied that they are asexual, because apothisexual is a modifier, making it a specific sub category of asexuals. Microlabels are most often used to describe more specific feelings, and to create a sense of community for people who also experience those feelings.
Unlike what some people believe, the term microlabel has nothing to do with how popular or well known the identity in question is. There can be uncommon terms that are not microlabels, because they can stand on their own and do not modify an existing identity. There can also be microlabels that are well known and popular, but they are still microlabels because they are a subcategory of an existing identity.
Discourse on Mirolabels
some people use microlabels some dont. we should leave it at that, but we dont. some people hate microlbels because they dont understand.