babble-baby
A babble-baby is a person who talks so much and about such dumb stuff that they might as well be a broken toaster with a mouth.
'I’m a babble-baby. I said my cat is a king and that the sun is a donut.'
DM: 'My friend is a babble-baby. He talks about dogs, math, and why the sky is sad.'
Tweet: 'I think I’m a babble-baby. I said 5 things and none of them made sense.'