amputorgy 

An orgy involving amputees.

OMG, did you see the amputorgy last night? There were arms and legs everywh..Wait, no there weren't.

amputorgy by Amputee fan 01 August 31, 2005

amputorium 

-a ceremonial gathering held with the purpose of removing an appendage or tool that has been misused or abused.

"His amputorium came as no surprise."

amputorium by connie m May 19, 2009