Source : Webster's Revised Unabridged Dictionary (1913)

Scrumptious \Scrump"tious\, a.
   Nice; particular; fastidious; excellent; fine. [Slang]

Source : WordNet®

scrumptious
     adj : extremely pleasing to the sense of taste [syn: {delectable},
            {delicious}, {luscious}, {pleasant-tasting}, {toothsome},
            {yummy}]