A phrase used to express surprise, similar to OMG, but usually uttered without closing one's mouth, or typed without being spoke out loud to hear how ridiculous it sounds.
Annoying Facebook Girl: i justz got a NEW PHONE for christmas OH GEE numbers plz
by nsquirrel1138 December 26, 2011
A weak sarcastic fake surprise.
Lying in a pool of his own blood, Steve Harper says to his son, "Oh gee, I'm dying."
by TonyZee December 05, 2015