👉 540991.2! (Squawk!) This is a slang term that sounds like "540991. 2." And to make it even more confusing, it's derived from the amino acid tetrahydroisoquinolinolone and has an odd double "n" at its end. Imagine if you were trying to remember how many apples are in a bunch, but the number would be distorted into "540991.2". It's like someone yelling '540991 3' when they know it's just a number. But hey, it sounds funny and adds to the playful tone of the sentence!