Amalgamite
Being of different backgrounds, ethnicity, groups, or company departments coming together. Two or three or four or more in one. Lots of personalities intertwined, perhaps in your own warped mind. An amalgamation of people or personalities.
Sam: I'm spiderman, batman and superman all in one. Wow, I am amazing!
Riz: No, you're just a loser amalgamite!
Riz: No, you're just a loser amalgamite!