"How does Brundlefly eat? Well, he found out the hard and painful way that he eats very much the way a fly eats. His teeth are now useless, because although he can chew up solid food, he can't digest them. Solid food hurts. So like a fly, Brundlefly breaks down solids with a corrosive enzyme, playfully called "vomit drop". He regurgitates on his food, it liquifies, and then he sucks it back up. Ready for a demonstration, kids? Here goes..."