A fork of Rural Dictionary
A homosexual act of sodomy doggy style on the beach in broad daylight.
Usually by two males.
Look at those two sundogging on the beach.
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).
My party was hit by a sharknado as only a few people showed up.
I don't understand why no one is here, there must be a sharknado going on.