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To be so amazingly sweet, and ridiculous as to be deserving of it's own word.
A title for someone great or a term to describe someone that is beyond other description for how amazing it is.
When she killed the Darkling, it was Sweetdiculous!

That conversation about nothing was pretty fun, of course it was sweetdiculous
by Sweetdiculous January 19, 2010
An Electro Thrash band from Boston, Massachusetts. Myspace.com/Sweetdiculousthrash
Sweetdiculous thrashed hard at their show in Boston the other night.
by crystalcastlesluvah February 07, 2010
so sweet as to be ridiculously sweet.
Terry McScotty is a sweetdiculous ninja.
by SweetdiculousNinja May 05, 2006