Reallllly? Do you just not like Mel's work or what? Some of his movies are stupid to me. But this one and Blazzing Saddles were very good satires to me.
The reason the horse whinnies when her name is said has to do with that her name means "Glue" in German or something -- which is where old horses go when they die....the glue factory...
"Vould you care fer a roll in da hay?" Roll, roll, roll in da hay!