Knights of the Lambda Calculus: n. A semi-mythical organization
of wizardly LISP and Scheme hackers. The name refers to a
mathematical formalism invented by Alonzo Church, with which LISP is
intimately connected. There is no enrollment list and the criteria
for induction are unclear, but one well-known LISPer has been known
to give out buttons and, in general, the _members_ know who they
are....