Top Definition
An abbreviation for the words "super" and "duper" which, put together, increase the emphasis placed on how spectacular something is.
That was supdup fun!

It was supdup exciting when we went on the rollercoaster!
by XTJK August 09, 2009
1 more definition
5 Words related to supdup
Powerful,Great,and Versitile as Superman
Dat boy Kobe is Sup'd Up! Ive been hittin da weights trying to get Sup'd Up on these boys!
by MajorPayne334 March 08, 2008

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