loquacious

full of trivial conversation

Given to continual talking; talkative; garrulous.

Latin 'loquac-' (talking a lot)

“He became loquacious, apostrophizing vacancy with uplifted hand and eye.”

— George Meredith, Complete Project Gutenberg Works of George Meredith

“The loquacious old man is holding forth with his bunkmates on the perils of striking it rich.”