My sister has a pair named "Corner" and "Wompus"
-- Which will probably be mystifying to non-USAmericans.
"Kitty-corner" is an expression that means, more or less, "on the opposite corner from" - describing the relationship of the right front foot of the couch to its left rear foot, or the relation of two businesses that face each other on the northeast, and southwest, corners of the same intersection.
"Catty-Wompus" is an expression that means more or less "In disarray" - you'd say your bed was catty-wompus the mattress was leaning up against the left bedpost at the head of the bed, with one of the sheets draped over it, the blanket is twisted up in a pile of the stuff that's normally stored under the bed, the foot of the bed is about a meter off the floor on account of the pile and the weight of the mattress on the head of it, and you can't find the pillows or bedspread until you get to the kitchen.
I have no idea how either of these phrases originated, but I'm almost sure they're uniquely American.