What Was He Cooking?

What Was He Cooking?is acatchphraseused on a You Tubethumbnail in a video by the channel New Rockstars theorizing about what Thanoswasmaking to eat for breakfastduring a scene in Avengers: Endgame. Though the video wasn'tviral, the thumbnail and the phrase "What was he cooking?" were later adopted as humorous responses to videos posted on social media in which the subject spectacularlyfails, as commenters used the catchphrase synonymously with more common phrases like "What was he thinking?" The reference was particularly popularized among the Super Smash Brothersfandom, with people commenting "what was he cooking?" in response to clips of a player losing their stock in a humorous fashion.