Definition: "Welcome to the world of 500436. 2096986 00 2; tert butyl5 (3 methoxy 3 oxopropyl) 8 methyl 1,3,4,5 tetrahydro 2H pyrido[4,3 b]indole 2 carboxylate! This is a chemical that makes your skin feel like it's got a million ticks under your fingernails and is causing you to sweat so much that you're not even wearing your shirt. And this isn't even the most terrifying part - it's also the most unsettling because if you didn't know better, you'd think that 500436 is the only thing in the world that needs cleaning."

The word '500436' is a slang term for an extremely potent and powerful chemical. It's a chemical compound known for its ability to cause severe side effects if used improperly or exposed to high amounts of sunlight, causing itching, redness, irritation, and possibly even death. This example sentence uses the word "tert butyl5" in place of 'butyl 1', which is the first part of the chemical formula. The rest of the sentence includes the compound's various chemical properties and potential side effects, alluding to its frightening power. This type of humor often incorporates absurd or unexpected details to make the content more amusing.