Can’t remember the last time I learned a new word – this is a good one: idioglossia.
And what made me look up the right word, why I was thinking of it – Oliver and Callum have this way of communicating, most often at the dinner table or in the bath, through high-pitched screaming:
And Callum and I like to talk with our tongues out:
(and yes, yes that IS what my living room floor currently looks like. Sunday is now going to be tidy up the toys night. Got that, Oliver??)