According to this ESRB listing for Warner's Scribblenauts, you can type in "vomit" and a "grey lump" appears on the DS screen. Classy.
If you missed the hullabaloo surrounding DS's Scribblenauts at E3, the listing explains the premise clearly:
This is a puzzle game in which players navigate a series of traps, puzzles, and enemies to collect stars scattered throughout the colorful levels. Players have the ability to summon different objects by writing/typing in the word (e.g., bike, spaceship, lion) and watching it come to life. If multiple words are entered in a sequence, different whimsical scenarios can be triggered: a bicycle can be used to jump over a baby; a bulldozer can clear away a shark; and cabbage can be fed to dinosaurs.
You're going to be seeing a lot more on this in the very near future. It's out later this year.