oh my giddy aunt

oh my giddy aunt

dated A mild exclamation of surprise, alarm, dismay, annoyance, or exasperation. Primarily heard in UK, Ireland. Oh my giddy aunt, what a generous gift! Oh my giddy aunt! Don't scare me like that! A: "Oh my giddy aunt, what manner of rubbish are you watching?" B: "Haven't you seen this before? This is the latest reality TV sensation!"
See also: aunt, giddy, oh
Farlex Dictionary of Idioms.
See also:
  • (for) land('s) sake(s) (alive)
  • (my) goodness
  • Land o' Goshen!
  • (oh) (my) gosh!
  • (oh) (my) God!
  • almighty
  • noes
  • oh noes
  • ach du lieber
  • whiz