A magic phrase said by the character Gwonam in the 1993 game "Link: The Faces Of Evil" Sometimes spelled "Squadilah" it is thought to mean "You'll always be behind your prey." Although it may just be Gibberish.
Its fame However can be more attributed to it's frequent appearances in "YouTube Poops"
(adj.) Something nastier than fuck, used to describe something unpleasant and can commonly be found to insult a comrade right in front of their own eyes