Lord!

(oh) Lord

An oath expressing surprise, shock, frustration, anger, or annoyance. Oh Lord! If we'd stopped the car one second later, that train would have hit us! I know you've had a long day at work, but Lord, is it too much to ask for you to take out the trash?
See also: lord
Farlex Dictionary of Idioms.

(good) ˈLord!

,

oh ˈLord!

used to show that you are surprised, annoyed or worried about something: Good Lord, what have you done to your hair!(Some people may find these idioms offensive.)
Farlex Partner Idioms Dictionary
See also:
  • (oh) Lord
  • almighty
  • (good) heavens
  • geez
  • geeze
  • jeez
  • Jeez!
  • jeeze
  • be a thorn in (one's) side
  • be a thorn in your flesh/side
References in classic literature
Yes, my lord! They are extremely fortunate in that respect.
Ideal Husband
"That which I have to say of her can only be heard by yourself, my Lord!"
"You will not sign that order, my Lord!" said Felton, making a step toward the duke.
"Oh, my Lord!" cried the baron, "I shall never console myself."
Three Musketeers
"Take control, Lord! We ask for additional vacancies on the court, and we ask for additional fine people like John Roberts.
Prayer offensive? Pat Robertson seeks divine intervention in remaking Supreme Court, as religious right presses for Roberts confirmation