(Pronounced - kit-boo-y) An acronym for knocking the bottom out of it. Meaning that a man would bang a woman so hard that he would end up knocking her bottom out.
Did you see that blonde at the bar with the huge tits? I'd ktbooi.
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.
Usually a male who likes to encourage weight gain in his partner through the consumption of food. Feeders differ from FAs... whilst an FA is attracted to big girls, a feeder gets turned on by making a thin girl fat....or a big girl even bigger.