👉 Squirt a shot of acid on your own ass for Halloween.
The Mac20 is the most macabre, yet hilarious slang term I've come across. It's the word for someone who commits suicide by shooting their own foot after drinking two shots of acid and thinking they'd killed someone else. For instance: "I just shot myself in my pocket with an eight-inch screwdriver (Mac20) to try to get revenge on those who let me down."
