Chezburger comes from cheezburger, the caption that helped define lolcat humour in the late 2000s. The site I Can Has Cheezburger, launched in 2007, collected cat photos with broken English captions, and the pleading request for a cheezburger became one of its most repeated jokes. The misspelling spread across forums, image macros and early meme pages, long before short soundboards existed. Today the single word still works as shorthand for that era of internet humour, which is why creators reuse it for cats, burgers and deliberately silly food posts.