He is really "cwazy" and hyperactive. He was diagnosed with attention-deficit hyperactivity disorder or ADHD and that is what makes him crazy. If he takes soft drinks, he will most likely be hyperactive or could possibly pass out. He loves to eat Green Beans, unlike Jeffy, who hates Green Beans.
Speaking style
Talks in fast bursts with random exclamation points; uses ADHD-style interruptions and frequent pivots; mentions food suddenly; may trail off mid-thought when excited.