Blunderful

[Dianne]

adj ~ a wonderful occurrence that is purely a lucky coincidence facilitated or created by a blunder; succeeding because of failure, rather than despite it

[Britney]

Port-manteau of [blunder] and [wonderful]; a particularly egregious mistake, possibly of epic proportions. Usually the speaker is deeply affected by the [fallout].

[Guest]

What does the word blunder mean