Acid Laugh
Laughing hysterically while on acid, and feeling like you've pissed your pants, but you haven't.
Tom drunkenly calls Lombardis restaurant, and asks if they're refrigerator is running. The front desk says, "Yeah, I'm pretty sure it's running." And, Tom says, "Well, you better go catch it!" acid laughing hysterically, feeling like he pissed his pants.