Used to express mild surprise, amazement, or enthusiasm.(interjection)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "gee whiz" in a sentence
"Another substitute word for God is gee, though gee whiz and gee whillikers! are ways of not quite saying “Jesus.”"