Definitions

1. verb

to speak or talk foolishly or at length, especially about trivial matters

“She deblaterated about her vacation for hours, boring everyone in the room.”

2. verb (archaic)

to speak or prattle in a foolishly loquacious manner

“In those days, people often deblaterated about their daily lives.”

3. noun

loquacious talk or prattle

“Her deblateration at the dinner table was annoying everyone.”