'Flogging a horse to death' means being obsessed with something. It is not a phobia.
Necrophobia.
Necrophobia is the name for the fear of death adders.
the name for the fear of death is called thantophobia .
pyrophobia
Pteronarcophobia is the fear of flies, which includes horseflies.
Necrophobia Phobia name for the fear of death. It is a common phobia
I know the fear of horses is : Equinophobia. but I am not sure there is one specifically for horse jockeys.
premuertophobia
The fear of death is common. Elevating it to a phobia is not.
there isn't a name for it.
Everyone is afraid of dying, but an extreme fear of death is necrophobia
The irrational fear is called a phobia; the experience or object that triggers a phobia could be called a phobic experience or object.