Blather/ˈblæðər/ Definition 1 of 2Pro Tip 1/3Casual Conversations Used in relaxed, informal settings among friends or casual acquaintances. At the party, her blathering on left me bored. Pro Tip 2/3Negative Implication Implies the speaker's annoyance or disinterest towards the content or length of conversation. His blathering didn't contribute anything of value. Pro Tip 3/3Subject Focus Can be used when someone talks excessively on a specific topic. They blather about their vacation endlessly.