Abroachillean is a more specific version of abrosexual/abroromantic. Its when one who is a male/male-aligned gender (i.e. demiboy, genderfaun, boyflux, etc.) is abrosexual, but is only fluid through achillean identities. For example, an abroachillean may be a demiboy who is fluid through vincian, toric, bisexual, but is never lesbian or trixic.
A more simple definition is someone who is male or male-aligned, and is fluid through identities that always have an mlm/achillean aspect, never being fluid through identities that don't have a mlm/nblm component, like trixic and sometimes lesbian.
It's counterpart is Abrosapphic.
Coiner and History
Abroachillean and it's first flag were coined by tumblr user godcoric on August 31, 2021.
The second flag was made by miraheze user Bigender on March 1st, 2022. It combines the Abro and Achillean flags to represent a combined identity.