"Religious jargon" refers to the specialized language or terminology used by people who follow a particular religion. It includes words, phrases, or expressions that are specific to religious beliefs and practices. Full definition
It's OK to have a good time without having to explain it away with religious jargon. (relevantmagazine.com)
They do not have to be termed spiritual or in any way associated with religious jargon. (religion.blogs.cnn.com)
However, a lot of attendees could be in a state of heightened sensitivity (kind of like allergic) to all things churchy, so we'll be avoiding religious jargon and conventional spiritual practices. (redeeminggod.com)