What is Horse Hockey?
1.
1 horse excrement
2. nonsense
(See also 
We don't care about any of this horse hockey, tell it to someone who cares.
2.
A tall tale that is so extravagant that there is no way anyone could ever believe it.
George Bush's economic plans.
See 
3.
An old-fashioned sounding way to say "bullshit."
That's a load of horse hockey!
See 
4.
A variant spelling for 'polo'.
Them snobs are playing horse hockey again
See