Any events involving clam (i.e. lady-schnickens) that stretches the boundaries of the imagination. This can pertain to the sheer quantity of clam, the quality of clam, or some unusual or fantastic act involving clam.
i.e. "Pandemonium"
There was more scattered snatch prowling around that bar than a Vivid Video casting call. It was sheer clamdemonium!
Clamdem is a takeoff of Mandem and involves a situation where more than woman is gathered in a linear fashion within close quarters on a motorcycle or ATV.
I was rolling down 75 this morning and sawtwo chicks riding clamdem on that R1!!!