Every discipleship class I have ever taken says to remember to speak English not church talk to new believers. When you have grown up in the church you forget we have our own language. Just think about Jesus conversation with Nicodemus about being born again, even he didn't get what the Lord was saying. Read John 3 if you are unfamiliar with the story.
There are lots of other words that homeschoolers throw around; eclectic, classical, unschooling, and traditional, and those are just teaching styles. Just wait until we start talking about curriculum! I try to remember this every year as school starts. When new homeschoolers are jumping on board I need to speak their language. I try to explain the things I know and then let them know it is OK to not speak the "homeschoolese" that I once didn't understand either, but every year I'm becoming more fluent!
If you are interested in Charlotte Mason here is a great web site that I love: http://simplycharlottemason.com/