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1.
a level of fine on par with a superhero's strength -- infinitely attractive
she's not just a hot broad, she's superfine!
by warren B February 27, 2002
 
2.
Adjective used by musician Walter Becker (of Steely Dan fame). Usually along with ultradank.
"This tape will be superfine, ultradank and most excellent for my purposes."
by Since 1845 April 30, 2006