Multifront

undefined:

Multifront is the state of having more than two fronters all or most of the time. A multifront system always or almost always has more than two headmates fronting simultaneously. These may be the same headmates or they may vary. They may develop groups that usually front together, but they need not do so.

Etymology
This term was coined by the Ironwood Collective on Tumblr. It is not exclusive to systems of any particular type or origin, only to systems in general.