Wiktionary
kitty-cornered
a. (context US English) cater-corner#English.
WordNet
kitty-cornered
adj. slanted across a polygon on a diagonal line; "set off in a catty-corner direction across the vacant lot" [syn: catacorner, cata-cornered, catercorner, cater-cornered, catty-corner, catty-cornered, kitty-corner]