Humping shock
To randomly break out in a frenzy of humping. This can happen in multiple ways and at any time. The person appearing to have humping shock, will hump everything and anything.
Rachel: Hey did you see what Joe did to Carla last night?
Mel: Yea, he broke into humping shock and humped Carla.
Rachel: Weird.
Mel: Yea, he broke into humping shock and humped Carla.
Rachel: Weird.