The line comes from a Flex Seal commercial featuring spokesperson Phil Swift, taken from the 'That's a Lot of Damage' bucket test ad in which he demonstrates the sealant. The commercials became a source of internet memes as viewers clipped Swift's enthusiastic delivery and reused his catchphrases in edits, remixes and reaction videos. 'How about a lil more?' survived as a playful follow-up to the better-known damage line, and creators use it to signal that someone is about to go too far, add too much, or double down on a joke.