"Combas" is a term often associated with a specific group in Haitian Vodou, the "Compa", or "Compa Dread". They are typically associated with the Loa (spirits) of Baron Samedi and Ghede.
It's important to be very cautious about making assumptions about the origin of a term without proper context or evidence.
If you could provide more details about the context of "Twiangia" (such as its origin, where you heard it, or what it refers to) I might be able to provide a more relevant answer.