If you’ve heard people chanting “Let’s go, Brandon!” or seen someone with a shirt or hat sporting the seemingly-jovial message lately, you might be wondering who Brandon is and why so many people are rooting for him.

In this case, the phrase isn’t actually supporting a guy named Brandon. Instead, it’s a euphemism that many people in conservative circles are using in place of saying “F*** Joe Biden.”

The origins of the meme go back to Oct. 2, when race car driver Brandon Brown won his first NASCAR Xfinity Series race and was being interviewed by NBC reporter Kelli Stavast. In the background, some in the crowd can be heard chanting “F*** Joe Biden,” though Stavast says “you can hear the chants from the crowd, ‘Let’s go, Brandon!’ ” in her broadcast.