drop a clanger

drop a clanger

To accidentally do something embarrassing. Primarily heard in UK, Australia. I really dropped a clanger when I asked Julia about her surprise party—which hadn't happened yet.
See also: clanger, drop
Farlex Dictionary of Idioms.

drop a clanger

BRITISH, INFORMAL
If you drop a clanger, you make a very embarrassing mistake. Conservatives in Eastleigh dropped a clanger in their election leaflet by admitting that few people will be voting for them tomorrow. The presenter dropped a clanger on this morning's show by referring to the singer's long-haired son as a girl. Note: This expression probably comes from comparing an obvious and embarrassing mistake with the clang or loud ringing noise made when a heavy metal object is dropped.
See also: clanger, drop
Collins COBUILD Idioms Dictionary, 3rd ed.

drop a clanger

make an embarrassing or foolish mistake. British informal
Dropping something that makes a loud clang attracts attention; this mid 20th-century expression is used especially in the context of a very embarrrassing or tactless act or remark made in a social situation.
1998 Spectator Yet he never escaped from his own nagging suspicion that he had somehow overachieved…and that he was likely to drop a huge clanger at any moment.
See also: clanger, drop
Farlex Partner Idioms Dictionary

drop a ˈbrick/ˈclanger

(British English, informal) say or do something that offends or embarrasses somebody, although you did not intend to: I dropped a real clanger when I mentioned the party. He hadn’t been invited.
See also: brick, clanger, drop
Farlex Partner Idioms Dictionary
See also:
  • catch (one) on the raw
  • catch/touch somebody on the raw
  • fall about
  • fall about laughing
  • never ask pardon before you are accused
  • close the door on (something)
  • fall about with laughter
  • lager
  • lager lout
  • lout
References in periodicals archive
The company appeared to drop a clanger by revealing a June launch date for the Nokia Lumia 900 online before quickly removing the web page.
The pair caused controversy after agreeing female officials "don't know the offside rule" and predicting lineswoman Sian Massey would drop a clanger during Wolves's home game against Liverpool on Saturday.
Even the legendary language mangler Bush didn't drop a clanger like that.
Dr Cox decides to drop a clanger when he tells the residents that it is inevitable the staff will end up killing a patient or two - albeit by accident.
ALEC STEWART watched his heir-apparent James Foster drop a clanger and told him: "You expect to catch those."