adjective
(colloquial) Oriented backwards, particularly after a mishap.
(idiomatic, colloquial) Hopelessly misguided; contrary to what is normal, expected, or logical; having taken the utterly wrong choice.
adverb
(colloquial) Moving backwards, that is, rear end first.
(idiomatic, colloquial) In a hopelessly misguided manner; in a manner contrary to what is normal, expected, or logical.