A hamon technique by Dire from JoJo no Kimyou na Bouken, which he used against Dio Brando.
"You fell for it, fool! Thunder Cross Split Attack!" - Dire shouts the attack.
"By crossing his arms, he can attack while keeping his guard up! It is the perfect mix of offense and defense!" - Robert E. O. Speedwagon.
"No martial artist has ever successfully defended against it! - Straizo.
However, Dio counters the attack with his Vaporizing Freeze, killing Dire in a very anti-climatic way.. It gained memetic status over the years, with various memes referencing the scene and the attack pose. Also used in bait-and-switch videos in the vein of Rickroll.