An event or situation which is both maddening and at the same time completely ridiculous.
'Darling, the wardrobe you bought us has broken'
'Why is that, my dearest wife?'
It seems to have exploded due to the vast quantity of clothing I have shoved into it'
it can mean a variety of things depending on how you say it, but most especially either "cool" "messed up" or "hot"
- Did you check out the show last night? The band was mandanculous.
-That guy just ran into your car. That's mandanculous.
-damn! that guys body is mandanculous!