bang on about (something)

bang on about (something)

To speak continuously or at great length about something in a foolish, tedious, or irritating manner. Primarily heard in UK. Tom is always banging on about his plans of becoming some great author, but he never writes a blooming thing! What on earth are you banging on about? You really have no idea how politics works, do you?
See also: bang, on
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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