Girl- "Why were you and Vinnie whispering about me when I walked by? It was SO obvious!"
Innocent Bystandard- "What? I had no idea what he was even talking about, that fool just Horse-Whispered me outta nowhere!?!"
Used as an adjective:
#1- "What was Vinnie just whispering to you about?"
#2- "I have no idea, I wasn't paying attention... but I guess that's why they call him the horse-whisperer."