Anything can be described as "the mad note" if considered; excellent,entertaining, surprising, unexpected or awe-inspiring.
That was the mad note!

(or for geater emphasis) Dude! that shit was the mad note!
by Carl Ashford December 27, 2003
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very good, usu. applied to music, but can be applied to anything worthy of such praise
"youse guys never heard of "The Time"
a band? -dude, that shit is the madnotes"
by alan harrison July 02, 2003
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da absolute bomb. kuz u no dat shit is wack
dat bling is da madnote!!
by Maz June 02, 2003
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