A discussion between family (e.g. cousins) or close friends at a table or other private setting, where the two (or more) of you can have completely open, often deep, conversation. The key to kitchen table talk is the ability to throw the dirtiest shade, talk shit, and spill piping hot tea, that would not be typically be acceptable in every day society.

What happens at the kitchen table, stays at the kitchen table.
Girl 1: This is going to sound really shady, but...
Girl 2: It's okay girl, this is kitchen table talk.
by TheRealRoommate December 18, 2018
Get a kitchen table talk mug for your father-in-law Jerry.