Wiktionary
a. 1 (context colloquial English) Oriented backwards, particularly after a mishap. 2 (context idiomatic colloquial English) Hopelessly misguided; having taken the utterly wrong choice. adv. 1 (context colloquial English) Moving backwards, that is, rear end first. 2 (context idiomatic colloquial English) In a hopelessly misguided manner. alt. 1 (context colloquial English) Oriented backwards, particularly after a mishap. 2 (context idiomatic colloquial English) Hopelessly misguided; having taken the utterly wrong choice.
Usage examples of "ass-backwards".
Because we’re gonna liberate every one of those ass-backwards planets out there, you’re gonna have a zillion decent bodies to choose from.
To fly down from orbit in huge graceful curves over the high desert would have been a hell of a difference from falling into the sea ass-backwards in an Apollo.