talk that is difficult to understand (e.g. of a baby, people at a party)

trivial talk, often incessant

something said, written etc that is foolish or does not make any sense; stupid behaviour

craziness, ridiculousness

to talk in a simple, childish way

babble

talking wildly

maniacal

a long, angry complaint or accusation

abuse, outburst

making a loud, strong noise (of protest)

loud, insistent