Some crazy sh*t that knocks the socks out of you. Well that or something you just didn't see coming.
idiot01: Dude, that ugly lady's face popping out like that was SO unexpected.
idiot02: Dude, you saying a word with more than three syllables is unexpected!
an antonym of expected
what is not expected
finding something you weren't looking for.
Doesn't "expecting the unexpected" make the 'unexpected expected', and the 'expected unexpected?'