The line comes from Scorpion, the undead ninja in Mortal Kombat, who shouts it while throwing his spear to pull an opponent toward him. It first became famous in the arcade fighting games of the early 1990s and has been repeated, remixed and quoted in almost every later Mortal Kombat game, film and parody since. On social media it survives as a shorthand for grabbing someone's attention or pulling them back into a conversation, which is why short clips of the shout still circulate in gaming edits, memes and reaction videos decades later.