The line comes from AquaticNeptune's fan-made video SpongeBob Plug 'n' Plays (With Shrek), which mashes SpongeBob characters together with Shrek in a gaming-themed sketch. Clipped to just over four seconds, the moment where Patrick questions what is being played became a standalone reaction meme shared across soundboards and short-form video. Gaming creators adopted it as a quick callout for odd or suspicious on-screen activity, and its simple question format keeps it reusable wherever someone needs a nosy cartoon voice interrupting the action.