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a common misspelling of failure.
Person 1: "Look, I just wrote down failular"
person 2: "Dude, you just failed at spelling failure"
by pixplox November 21, 2012

something with epic fail potential; having the qualities of an epic fail
1: Today I waited at the restaurant for an hour before I realized my date was tomorrow night.
2: Dude, that's failular.
by fueledbycobra September 25, 2009