It means:
* Askew: Not straight or aligned properly, crooked, lopsided.
* Out of order: Disarranged, disordered, chaotic.
* Wrong: Incorrect, inaccurate.
Examples:
* "The picture was hanging cattywampus on the wall."
* "The whole plan went cattywampus after the unexpected storm."
* "My calculations were cattywampus, so my answer was wrong."
Origin:
The word is thought to have originated in the 19th century and is likely of American origin. Its exact etymology is uncertain, but it may be a combination of "cat," "wampus," and "umpty."
Usage:
"Cattywampus" is considered informal and humorous. It is often used in a playful or casual manner, but it can also be used more seriously to describe something that is truly out of order.