A lot of people would ask what my badge PNOY means and it's short for Pinoy as I'm part Filipino like my man Manny Pacquiao in the above video. Every exchange has different acronyms such as KCBOT is limited to 1 or 2 letters, CBOT up to 3 letters, CME is generally 2-4 letters but I've seen older members with 5 or 6 letters.
Originally I wanted to use SLIM but SLI was taken by a big S&P trader and if someone had the first 3 letters, another couldn't be added on for a new badge. One hilarious badge I wish I took that someone else had is DUDE and another funny one I saw was some Mexican guy whose badge was TACO. A lot of people used initials but to see humor and individuality was all part of the trading pits.