The line comes from SpongeBob SquarePants, the animated series that premiered in 1999 and is set around the Krusty Krab fast food restaurant in Bikini Bottom. In the show the joke is simple restaurant frustration, a customer expecting a complete tray and finding one item gone. Short Krusty Krab exchanges like this were clipped for soundboards and meme edits because they are instantly recognisable even out of context. The drink line survived as a shorthand for any missing item, bad service moment or order gone wrong.