trinitisms

ism - A distinctive doctrine, system, or theory.
The American Heritage(R) Dictionary of the English Language, 5th ed, according to Wordnik.

Trinitisms are decrees I make or terms I coin with no necessary reason. Or terms I use often that people don't know. Some I coined, some I didn't; when in doubt, assume I didn't.

Trinitism when not used as a proper noun can refer to any given person's own trinitisms.