A person who cooks food so awful it must be doused in ketchup by the person forced to consume it in order to hide the actual taste.
Girl 1: I heard you got invited to Mary's dinner party and she is making pot roast.
Girl 2: Yeah I will totally have to eat before I go because she is a total ketchup cook.
Girl 2: Yeah I will totally have to eat before I go because she is a total ketchup cook.
by Murrey from Michigan December 16, 2010