A way of replacing the need to apologize or to say sorry, often by using this term to ease the tension of the situation. To make one seem not as responsible of his or her mistakes. my bad can also be an alternative term of equal meaning.
1: I had sex with your girlfriend last night.
2: What the hell?? What kind of friend are you???
1: Aw man, my fault! (or "my bad!")
2: Man it's cool, since you said my fault.
2: What the hell?? What kind of friend are you???
1: Aw man, my fault! (or "my bad!")
2: Man it's cool, since you said my fault.
by zculver September 29, 2008
Get the my faultmug. (n.) A combination of an apology and a dismissal. Basically, saying "oh yeah, I did that, but I don't care".
Persons of an older generation can find this quite annoying to hear when expecting an actual apology.
Persons of an older generation can find this quite annoying to hear when expecting an actual apology.
by Traffic-Cone-Liberation-Force November 16, 2004
Get the my badmug. OMG!! HAVE YOU SEEN WHAT *insert my name here* DID YESTERDAY?!?! HE HOOKED UP WITH THE MOST POPULAR GIRL!!
by Minecraft_Tuber_Kid January 4, 2019
Get the My Namemug. 
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” 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”.
by rawmlkmyke January 7, 2018
Get the My Bagmug. by xcrzysquirrelx March 23, 2009
Get the my friendsmug. by michelle October 22, 2003
Get the my bustmug.