Definition of "Sumcaragon"

Okay, I've found the definition of my "sumcaragon". First, we break it down into the most relevant definitions of its parts:

1. Sum = The whole amount, central idea or point (the gist)
2. cara = Old Irish meaning "friend"
3. gon = a figure having a specific kind or number of angles

Thusly, I've come up with this definition to sumcaragon:

Sum-cara-gon: (noun) - The central idea or point of a friend's angle.

You saw it here first, folks! ;-)