A general suffix that can be added to various place names in order to indicate the people in that place typically have a hillbilly, or Kentucky-like, lifestyle. It doesn't always work, and sometimes takes creativity, but when it does, it can be hillarious.
A person who says your partner is their "bestest mate", then attempts to have sex with them. This is the same as Two faced or Cunt or Shallow. A Tucky can also be someone who lies constantly to boost his ego.
I hate that guy, He is a tucky and i hope he gets ran over.