gee whiz

gee whiz idiom
An expression of surprise, dismay, or enthusiasm. For example, Gee whiz, Dad, I thought you'd let me borrow the car, or Gee whiz, they finally won the Series! This term is thought to be a euphemism for “Jesus Christ.” [Slang; 1870s]

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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