What does the trio bong mean in Chaoshan dialect?

The three-person figure is a landmark building in Shantou, with three white statues in appearance. The prototype of the three-person figure is the winner of Shantou Water World Champion. Because most citizens are commonly known as "three people", it has been established for many years, and today's official materials and media reports are also called "three people".

So this should be a joke. Feng means to fight, and Lu means to fight you until three people make up four people.