1) When someone thinks they are
great at something, but they are really
bad at it; often used sarcastically.
2) When something is spectacularly
bad.
1)
- What did you
think of the show?
- Well at least the
band seemed pleased with themselves.
- Yeah, it was pretty lextacular.
2)
- Man, that new Britney Spears album is so
bad I feel embarrassed for her. Really lextacular.