What is pro-pain and pro-pain accessories?

Pro-Pain is a hardcore band from the United States. They are known for their aggressive and political lyrics, which often deal with social issues such as poverty, inequality, and corruption. The band was formed in 1991 in New York City and has released over a dozen albums to date.

"Pro-Pain accessories" is a phrase made popular by the animated television show King of the Hill. In the show, one of the characters, named Boomhauer, frequently uses the phrase when referring to various items that he deems important or necessary. The phrase has since become a meme and is often used online to refer to any kind of accessory or tool that one might find useful or necessary.