Dictionary.com
Thesaurus.com

corpus vile

British  
/ ˈkɔːpəs ˈvaɪlɪ /

noun

  1. a person or thing fit only to be the object of an experiment

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of corpus vile

literally: worthless body