Top Definition
used in replace of the word fuck
used often to show disaproval or shock
1. What the fiznuck!?

2.I fiznucked on that test in class...

by Matthew Lawrence July 10, 2008
Like fuck, only coolified.
1. Fiznuck, I failed my pre-algebra test.
2. I fiznucked that hot chiznack.
by v1n1nv3r1t4z June 15, 2003
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