hinky

or hin·key, hink·ty, hinc·ty

[ hing-kee ]
/ ˈhɪŋ ki /

adjective, hin·ki·er, hin·ki·est. Slang.

acting in a nervous or very cautious way.
suspicious: Whenever he agrees with me, you know something hinky is going on!
snobbish; haughty.

Origin of hinky

First recorded in 1920–25; origin unknown
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019