All hail Chris Evans' glorious, glorious ass in Avengers: Endgame.
The joke about his wonderfully thicc butt started when Scott Lang, AKA Ant-Man, commented to Steve Rogers (Captain America) in the film, " You look great, Cap. As far as I'm concerned, that's America's ass."
Memers decided that it was indeed glorious enough to deserve a cornucopia of its own memes, and we can't say we disagree with that sentiment.