Gaeltard

A person fascinated with the Irish language and insists on speaking it 24/7. A Gaeltard will insist in their name being written in its Irish variant, e.g. someone called Declan calling themself Deaglan. Will also scar their children for life by giving them a weirdo Irish name which means something completely random in English, e.g. "Sneachta", which means "snow".