Church lady kool-aid is kool-aid but doesn't have much of the powder mix in it. It tastes really bad, or just like water, because of the lack of sugar and taste. The name comes from the way an older lady would make kool-aid with less sugar, sort of "more healthy".
Person 1: Dude, is this just colored water?
Person 2: My mom made it. It's church lady kool-aid.