A hell-storm of swirling winds and killer sharks capable of leveling small towns and turning mediocre B-list celebrities into has-been D-listers.

A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.

A "sharknado" derives from a combination of both the words "shark" and "tornado". It is exactly that: a shark tornado.

The scariest effen weather phenomenon going.

Something that prevents a really good event from being successful
or
an alternative, really crap, event that people choose in preference to what you've organised.

(derived from the strange success of the 'b' movie Sharknado).

(shark.nay.doe) noun.

1. A tornado that dooms large metropolitan areas with dumping thousands of ravenous sharks ready to eat people's appendages off. No one is safe from the sharknado's destructive path of multiple vortexes and the only hope for survival is Ian Ziering (from the original 90210) and a washed up Tara Reid, oh and a bad ass bikini barista who also seems to be an expert marksman.

2. When many events happen all at the same time, making someone's life or a situation overwhelming. This comes from the SyFy original movie "Sharknado" where a storm of multiple tornadoes hit LA full of ravenous sharks.

Anything that is big, confusing and potentially dangerous that probably shouldn't exist but you still have to deal with anyway. See also, Sharknado, the movie