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1.
Ass backwards. The state doing (or having done) something the wrong way.
No no dude, you've got the cables plugged in all bass ackwards.
by Blossom August 11, 2005
 
2.
The art and science of hurtling blindly in the wrong direction with no sense of the impending doom about to be inflicted on one's sorry ass. Usually applied to procedures, processes, or theories based on faulty logic, or faulty personnel.
Once again, marketing wants the poor engineers to build something that will sell, but don't have a clue what that "something" could be. Bass ackwards as usual.
by filmchild February 24, 2004
 
3.
Describes something being so screwed up that it's not just backward, it's ASS backward...and the point is emphasized even more by screwing up the words "ass backward"
The radio won't work because you put the batteries in bass-ackward.
by voiceofgod February 06, 2006
 
4.
1) extremely (and often embarrassingly) poorly conceived, executed and/or organized

2) a less vulgar and more socially acceptable synonym for "ass-backwards"
"Everything on that website is so bass-ackwards it takes forever to find anything!"...

"Yeah, somehow they manage to do damn-near everything bass-ackwards down there at Bridgeport!"…
by TIC Redux May 21, 2005
 
5.
The thoughtless act of going about something totally the wrong way, all the while expecting a positive outcome.
Vern mops the kitchen bassackwards, that's why the floor stays dirty.

If I put Samantha's brain in a bird, it would fly bassackwards.

He's bassackwards. Dude got a Plasma Tv before he paid his light bill. Now he's sitting watching the dark.

She spent her whole paycheck on a Michael Kors purse before she paid her rent. Now that's bassackwards!
by Mugsy X June 13, 2013