rattle away(redirected from rattled away)
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To speak tediously and at great length (about something). He just kept rattling away about literary metaphors and imagery. I didn't know what he was talking about! I caught myself starting to fall asleep while the professor rattled away.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
to chatter endlessly and aimlessly. The two old men sat there and rattled away at one another. Tom rattled away at Jane for a few minutes and then left the house.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.