mea culpa

mea culpa

An admission or expression of guilt or personal error. The Latin phrase literally means "through my fault." You're right, I should have done more thorough research before making such bold accusations. Mea culpa!

my bad

That was my mistake; I admit that that was my fault. Primarily heard in US. Susan: "Jerry, I asked you to do the dishes an hour ago, and they're still piled in the sink!" Jerry: "Oops, my bad, honey. I'll do them right now."
See also: bad
Farlex Dictionary of Idioms.

my bad

VERY INFORMAL
People say my bad to mean that something is their fault. Whoops! Sorry dudes! My bad!
See also: bad
Collins COBUILD Idioms Dictionary, 3rd ed.

my bad

used to acknowledge responsibility for a mistake. North American informal
See also: bad
Farlex Partner Idioms Dictionary

mea ˈculpa

(from Latin, often humorous) used when you are admitting that something is your fault: ‘Who broke this glass?’ ‘Mea culpa,’ Frank said.
The meaning of the Latin phrase is ‘my fault’.

ˈmy bad

(American English, informal) used when you are admitting that something is your fault or that you have made a mistake: I’m sorry — my bad. No, it’s my bad. I’m the one that got caught taking stuff.
See also: bad
Farlex Partner Idioms Dictionary

My bad

phr. It’s my fault and I’m sorry. My bad. It won’t happen again.
See also: bad
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions

my bad

Slang
Used to acknowledge that one is at fault.
See also: bad
American Heritage® Dictionary of the English Language, Fifth Edition.

mea culpa

It’s my fault, my mistake. The term was taken over from Latin as far back as the 1200s and continues to be used in this way. Ian Rankin had it in Strip Jack (1992), “‘You haven’t had a proper lock fitted yet.’ ‘Mea culpa, Inspector. Fear not, one’s on its way.’” A newer slangy version of this ancient Latin expression is my bad, only a few decades old but ubiquitous enough to be considered a cliché. Novelist John Lescroart used it in The Hunt Club (2009): “‘Yeah, you’re right, I’m sorry. My bad.’ Juhle hung his head.”
The Dictionary of Clichés by Christine Ammer
See also:
  • guilt complex
  • expression
  • hangdog
  • hangdog expression
  • racked with guilt
  • a guilt trip
  • guilt trip
  • how can you sleep at night
  • hangdog look
  • prick (one's) conscience
References in periodicals archive
DISY shot back with a harsh statement, saying that for Christofias to ask others for a 'mea culpa' -- Latin for 'my mistake' -- was the "most provocative farce".
"Mea Culpa" will run at Carbon 12 gallery, Alserkal Avenue, until May 1.
In these works, such as Martha Rosler's Bringing the War Home: House Beautiful series (1966-72) and Mary Kelly's Mea Culpa (1999), the artists explore how images of violence, especially war, when presented in private, domestic spaces through the media, affect civilians.
This is pretty obviously uncool, and she's issued her mea culpa. [AP/Vos Iz Neias?]
20, the day after CEO Reed Hastings sent his mea culpa letter to subscribers to announce the split between streaming (Netflix) and DVD rental (Qwikster), the stock ended at $130.03.
Labour's Lord Howarth of Newport said: "Isn't it time that the Chancellor and the Prime Minister acknowledged that their strategy of drastically reducing public expenditure cannot enable the UK economy to revive?" Lord Sassoon said Labour former Chancellor Alistair Darling had made a "complete mea culpa" and said we (the last Labour Government) got it totally wrong, raising National Insurance and putting a tax on jobs, and said there was no credible economic policy at the last election, which is why Labour lost.
I was very pleased to read the "mea culpa" and clarification in your May issue to the effect that pilots of certified aircraft do not have to make their own independent calculation of the appropriate indicated VNE speed for each altitude within its operating altitude range.
Taxpayers may appreciate his Mea Culpa but most are probably thinking Show Me The Money.
The executive's mea culpa' enabled his office to close the Scottis cod case(1).
The Purcell affair is far from over, despite his insincere public mea culpa.
According to AP, the public mea culpa came in a full-page spread Sept.
Con su primera novela, titulada La querencia (1996), Pilar gana el Premio Villa de Madrid y con la segunda, Mea culpa (1997), la Mencion Especial del Premio Nadal, ademas de una extraordinaria acogida tanto por parte de la critica como de los lectores.
On his blog, The Feed, Deggans himself offered up a mea culpa Tuesday, writing: "One serving of humble pie, coming right up."
Irwin, mea culpa. I incorrectly assumed that all concrete is internally vibrated.
But his mea culpa about the Wal-Mart deal wouldn't ring so hollow if he had volunteered to return every penny he made off it.