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Synonym for "wow". Alleged etymology: A way of saying "Jesus!" without being accused of swearing. More often used as a negative exclamation than a positive one.
Gee wiz, what have you gone and done with your hair?
by Xaviana December 01, 2003
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Mar 1 Word of the Day
One who has a mania for music.
I am a melomaniac.
by Larstait November 14, 2003
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It's what you say every 5 seconds on a 50's sitcom. Goes great along with that's swell. Means: oh shoot, darn it, wow, that's grand
Can be used in a variety of ways.

Gee wiz, Dad, you sure are swell!
by whitelulu October 26, 2006
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An exclamation of joy often used by people dressed in tweed jackets.
"Geewiz Henry, this ginger ale is simply devine!"
by Nikells July 03, 2005
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a "Gee wiz" or "g-wiz" is a street term for one thousand dollars in US currency.
"yo this motha-fucker owes me a motha fuckin g-wiz son"
by Joe- the Basement Crew September 05, 2004
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