Oboian
This language is so old and dumb, only oboe players use it. Every word ends with 'ito' and it's the worst.
My friend tried to learn Oboian. Now he says 'helloito' every time he sees me.
My brother tried to write a poem in Oboian. It ended with 'sillyito' and I laughed.
My cat tried to speak Oboian. It just said 'meowito'. I said 'no, I want fishito.'