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The term "My Bag" was originally slang for taking responsibility for one's own actions. Somewhere in the early 90s people started saying "My bad" either because they wanted to change the verbage of the original, or because they just plain didn't understand the original meaning. "My Bag" is slang for "Baggage",ie: You take your own problems, put them in a bag and carry it on your own back. "It's on me, my fault, my problem. "My Bag" excepts and takes the burden, "My Bad" just dismisses it.
"Joe, do you need help paying for your rent this month? I know you haven't been working and would really like to help you out." said Nick. "No thanks man, that's My Bag." said Joe. "Oh, My Bad, I just thought you could use the help dude."
by garbailian September 23, 2011
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Jul 24 Word of the Day
It’s an acronym standing for Can’t Remember A Fucking Thing. It’s usually used to describe embarrassment at being unable to remember someone (CRAFT moment); going onstage as the lead in the latest theatrical performance and your mind goes completely blank (CRAFT situation); the next morning after a night when you got pissed as a fart and woke up in bed cuddling a traffic cone and a string of fairy lights wound round your prick.
“Where did you go after we left the pub?”
Dunno, CRAFT.”
by AKACroatalin November 07, 2015
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The term “my bag” was common from 1930 to about 1995. It means “my mistake, my fault, my apologies”. The popular term my bad is actually a 1980s mispronunciation of the term “my bag”.

My bag” was a phrase used when playing a game of spades. In the game, you would have to for-tell how many "books" or hands you would take. If you went over that number it was called a "bag". If you were playing with a partner it was a courtesy to claim your mistake by saying "My Bag".

Spades came out of the Midwestern United States in the late 1930s. It was said to have been invented by college students who enjoyed both Whist and Bridge. They were looking for a fast-paced game that was competitive and strategic. The game slowly spread to other college campuses. It didn't really take off until WWII brought so much of America's youth into the military. Because the game was portable, could be played by small groups, and could often be played in less than twenty minutes, its popularity mushroomed. You can still find the game online.

“My Bag” meaning “My Mistake” should not be confused with “Not My Bag.” meaning “Not My Thing.” or “What's Your Bag?” meaning “What's Your Problem?”

When I was in high-school in the 70s “my bag” meaning “my fault” was very common. Even though “my bad” is said to have come out in the 80s I had never heard it until sometime around 2008 or so. I can't recall the last time I heard the term “My bag”.
My bag or My bad, I thought I sent you an invitation.
by rawmlkmyke January 07, 2018
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An African-American phrase widely used in the midwest (circa '60-'70) usually meaning to take full responsibility for an incident or action. To apologize for a mistake.
Damn, making me feel bad now...
by e-dub70 August 28, 2010
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