Used to express mild surprise, amazement, or enthusiasm.
Marked by or inducing a sense of wide-eyed wonder or excitement, as in response to an amazing achievement.
Exclamation used variously to express surprise, wonder, enthusiasm, protest, etc.
Causing surprise, wonder, etc.
"Why should I care?"; so what?
You only got 10% in the test. Gee whiz – you'll get over it.
Origin of gee-whiz
Alteration of Jesus.