A gronkadonk is usually a crabby old man/woman that barks at children the way a dog barks at a mailman. Most often, it is directed at teachers that have been around since the late cretaceous period, and act as such.
May I have an order of regular degular buttermilk pancakes? Without all the added jazz? Hold the blueberry smiley face, strawberry glaze, chocolate chips and whipped cream.