My Calculation

Ok, Scribblenauts Unlimited has about 30,000 words and 10,000 adjectives. Every word can be combined with as much adjectives as possible until you get the 200 letter limit.

Seeing this, about 20 adjectives can string on one word.

30,000 X 10,000 X 20 = 6,000,000,000

Plus, since you can put different combonations on different adjectives, that adds this to the equation

6,000,000,000 X 10,000 X 30,000 = Over 1.8 Quadrillion

If you lined up all those word combos, everything, all 1.8 quadrillion, that would be long enough to span...

ABOUT 500 GALAXIES

Mind blowing, eh?