go on and on about someone/something
go on (and on) about (something)
To continue or speak for a tedious or exasperating length of time. My date kept going on and on about his charity work, never even asking what I do for a living.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.
go on (and on) about someone/something
in. to rave about someone or something endlessly. Why do you have to go on about your sister so?
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.