Pootis Pow Time comes from Valve's Team Fortress 2, where Heavy Weapons Guy is the team's slow, immensely strong heavy-weapons specialist. The garbled 'Pootis' wording grew out of Heavy's in-game voice lines and was picked up by the game's fan community, who turned it into a running joke in machinima, Source Filmmaker animations and meme edits shared on YouTube. Those clips kept the phrase alive long after its original context faded, and it remains a quick shorthand for an unstoppable, slightly ridiculous charge into battle.