(I'll help ya, "let's go Brandon" refers to a chant at a NASCAR race of "fuck Joe Biden," to which a newscaster covering the event tried to be slick and say was actually "let's go Brandon," as one of the ~~racists~~ drivers in the race's names was Brandon, and then in response it became a meme mostly for the right/republicans. I'm personally surprised to see it being referenced above, as most people have spent the last few years decrying it as a nazi dogwhistle, but I'm curious to see if it now widens in popularity as people start to admit they never liked Biden either.)