Hankey-pankey /(hăṉ"ky̆*păṉ"ky̆)/

Han·key-pan·key

Hankey-pankey

n.
  1. Professional cant; the chatter of conjurers to divert attention from their tricks; hence, jugglery. [Colloq.]
  2. Illegal or unethical behavior, usually surreptitious; as, the boss got suspicious when profits seemed lower than expected, and hired an investigator to see if any hankey-pankey was going on. [Informal]
  3. Extramarital sexual relations, especially adultery. [Colloq.]