Think Fast Chucklenuts comes from Valve's Team Fortress 2, released in 2007, where the Scout is the game's fastest and most mouthy class. The line became a staple of TF2 videos, Source Filmmaker animations and gaming soundboards because it perfectly sums up the character's taunting playstyle. Clips pairing the shout with a sudden flashbang, baseball or surprise appearance spread widely on YouTube and meme pages, keeping it in use long after launch as shorthand for a cocky ambush that gives the target no time to respond at all.