pataphysics

Concise Oxford English Dictionary © 2008 Oxford University Press:
pataphysics /ˌpatəˈfɪzɪks/

▶plural noun [usu. treated as sing.] a supposed branch of philosophy concerned with an imaginary realm additional to metaphysics.

– derivatives
pataphysical adjective.

– origin 1940s: from Gk ta epi ta metaphusika, lit. ‘the (works) imposed on the metaphysics’, introduced by the French absurdist writer Alfred Jarry.