An expression of exclamation from the popular Disney movie 'Zenon, Girl of the 21st Century' (1999). The expression is also frequently used in 'Zenon: The Zequel' (2001) and 'Zenon: Z3' (2004), both installments of the 'Zenon' television film series. However, there is no known translation or actual meaning of Zetus Lapetus.
Margie: "Oh my gosh, aliens are said to be arriving tomorrow from the nearby black hole!"
Zenon: "Zetus Lapetus! That's stellar Margie!"