Top Definition
When an unforseen tax free infux of goverment funding is depositied into your bank account. Examples of such are overpayment of taxes resulting in return, college refund checks, ones month worth of pay in the Iraqi desert, and a blast from any other source you deem worthy of cheddar blast.
"Man, I got some cheddar today!...Nah man, I got a CHEDDAR BLAST!"
by Federmaus187 February 03, 2005
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