From Pluralpedia, the collaborative plurality dictionary
macaron (n., adj.)
Applies toheadmates, system functions
CoinerCapri Suns & Gushers🍒🐙 / Soulqueer-Schlatt / Plurgai

Macaron is a type of plural role for Hybrid/Chimera/Mixed plurals, who are both Multiple and Median. It’s similar to a Shell, an overarching persona like the shells of a macaron, encapsulating the frosting (headmates) around it. It is also similar to a Systemsona, except sentient (put not wholly sentient).

Some people may see their Macaron as connected to sentient system functions.