1) A fictional substance, mentioned in Fairly Odd Parents
; purportedly the "greatest substance in the world". Capable of entrapping genies, especially Norm.
See also unobtainium
2) An expletive from the same show, presumably referring to the material.
"There's three things I can't escape from: magic lamps, the charms of Barbara Eden, and smoof!" -Norm the genie
"Oh, smoof." -Timmy Turner