English

Adjective

bat-crap ‎(comparative more bat-crap, superlative most bat-crap)

1. Alternative spelling of batcrap
   • 2006, Joshilyn Jackson, Between, Georgia, Center Point Publishing (2006), ISBN 9781585478668, page 222:

     "Glad to see you're getting out. I know Genny's probably driven you bat-crap."

Adverb

bat-crap ‎(comparative more bat-crap, superlative most bat-crap)

1. Alternative spelling of batcrap
   • 2008 March 17, Chuck Lorre, Lee Aronsohn & Dave Goetsch, "The Cooper-Hofstadter Polarization", episode 9-1 of The Big Bang Theory, 00:07:55-00:07:58:

     Leonard Hofstadter : Not to mention, Sheldon is bat-crap crazy.
     

   • For more examples of usage of this term, see Citations:bat-crap.