I swan!

I swan!

Rur. What a surprise! Well, I swan! I didn't expect to see you here! Tom: I hear Charlie just won a thousand dollars! Jane: I swan!
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • Great day!
  • have a hitch in gitalong
  • fettie
  • touched
  • about to do
  • fend for oneself Go to shift for
  • bluh
  • bousta
  • Hey!
  • cas