The almighty Google concurs:There's nothing "OCD" about using the correct terms. Sometimes, it even saves lives. There is no situation where incorrect terms improve anything for anybody.
You can have The Idiocracy's Encyclopedia (founded by a couple of hippies as a rebellion against "the Establishment". Fact. Look it up.), and I'll take the term the fallers themselves use.
Machines exist which are called "fellers", but the fellers that do the falling call themselves fallers, fella.