table rapping

noun

noun

A rapping noise made, purportedly by spirits of the dead, on the table at which a seance is held.

I wish it were possible to impress this truth upon people who rush into spiritualism from curiosity, or who try "table rapping" or some similar phenomenon "for fun".1936, Rollo Ahmed, The Black Art, London: Long, page 229:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.