👉 Billying (often shortened to "bil") is a slang term used in American English, often associated with the phrase "I'm so bored I want to go out and bil". It's a play on words with "bile" which refers to bile or gallbladder fluid. The term originated in the 1960s as an informal way of saying something like "I'm so bored that I want to go out and bil", but it has since evolved into a more