The line comes from Metal Gear Solid, released for PlayStation in 1998, during the boss fight with Gray Fox, the cyborg ninja once known as Frank Jaeger. Obsessed with reliving his duel with Solid Snake, he begs for pain instead of fearing it, which made the moment stand out in a game full of dramatic encounters. Clips and quotes spread through gaming forums, videos and meme edits, and the taunt survived because it sums up the character in three words and fits any scene of stubborn endurance.