hanky-panky
noun
[ haŋkɪˈpaŋki ]
• behaviour, in particular sexual or legally dubious behaviour, considered improper but not seriously so.
• "suspicions of financial hanky-panky"
Similar:
goings-on,
funny business,
mischief,
misbehaviour,
misconduct,
chicanery,
dishonesty,
deception,
deceit,
trickery,
intrigue,
skulduggery,
subterfuge,
machinations,
extramarital sex,
infidelity,
unfaithfulness,
adultery,
liaison,
affair,
fling,
monkey business,
shenanigans,
carryings-on,
carry-on,
fooling around,
playing around,
jiggery-pokery,
monkey tricks,
monkeyshines,
fornication,
knavery,
Origin:
mid 19th century: perhaps an alteration of hokey-pokey.