Actually, in my years of discourse with a few mormons I have coined the phrase peeling the "onion of mormon religion." I have other language, but it seems that it would not be tolerated.
I usually have to start by getting them to concede that they really do worship 3 different gods and do not worship One God like christians. This takes some effort to peel that layer.
Ahhhhhh but they had one counsel...thus a 'trinity'...