Dimma-posting centers around the character Doug Dimmadome, owner of the Dimmsdale Dimmadome, from the classic Nickelodeon show The Fairly OddParents. The meme typically highlights his repetitive, long-winded introduction and his signature white ten-gallon hat, which often grows to impossible heights in various internet edits. It gained massive popularity in the late 2010s as a form of surreal humor, where users swap out words with the 'Dimma-' prefix or create increasingly absurd visual gags involving his hat. Today, it remains a staple of nostalgic internet culture used to mock excessive corporate branding or simply for the sake of comedic absurdity.