shenanigan

Etymology
Of origin. Earliest known use comes from San Francisco in 1855 (and earliest known mention in 1854 ) at the time of the. These possibilities have been suggested:
 * , shortening of.
 * , from the peddler's argot term.
 * dialect.
 * 18th century ,
 * dialect.
 * 18th century ,

Noun

 * 1)  A deceitful confidence trick, or mischief causing discomfort or annoyance.