In the style of The many memes of meta
Catchphrases and concepts that spread from person to person are known as memes, which, courtesy the internet, can now explode across the earth like a highly contagious virus (hence "going viral"). As with their IRL counterparts, some infectious diseases are global, while others are endemic to specific regions.
Here we will try and list some of these memes that are relevant to politics SE. one meme per answer please.