sculduggery

noun

1. skulduggery.

noun, plural skul·dug·ger·ies.

1. dishonorable proceedings; mean dishonesty or trickery: bribery, graft, and other such skulduggery.
2. an instance of dishonest or deceitful behavior; trick.

noun

1. informal underhand dealing; trickery

n.1856, apparently an alteration of Scottish sculdudrie “adultery” (1713), sculduddery “bawdry, obscenity” (1821), a euphemism of uncertain origin.