My Bad

This is one of those newly coined words that I started hearing about a year or two ago and have heard it rise in popularity within people conversations ever since. It seems like that's how lots of new words or phrases start. One person starts it somewhere off of the top of their head, and the word or phrase seems catchy and seems also to "coin" the moment or situation well that the person may be talking about; then, just like word of mouth, pardon the pun, it catches on here, there, and everywhere and spreads in a community, regionally, and then gets televised and will spread nationally as well. Now I hear people saying "my bad" on tv sometimes when I watch it. If a celebrity starts it, then it will really take off. One word that isn't even used anymore but was started by "Fonzie" on Happy Days many years ago, had everyone saying "heyyyyyyyyy" just to sound cool. I remember it.
That is the typical example too about how new words that fadishlly come in will go out just as quickly sometimes. One word that has been replaced that used to be used all the time is the word problem and problems. People would say there are problems or he or she has problems. Present day that word has been replaced in our American society and culture by the word "issues" I've noticed and that one has hung around or a while, a couple of years now. I never hear anybody say the word "problems" anymore when talking about a problematic theme or subject. I always year someone and everyone use the term "issues" so the word problem has seemed to be out-dated or replaced; not that it doesn't mean the same thing, but it's just not used anymore. I remember when I went to the hairdresser in Japan on the military base a couple of years ago and that was the first time I heard the new phrase, "my bad." The girl that used it was a very young girl in her early twenties, very overweight and sloppy about everything. She was sloppy about her appearance, her work, and after she'd cut my hair to get the completed look that a three year old had been in my head with the scissors, I asked her if she'd ever done a swing bob before and she said yes. I called her later almost hysterical and emailed her too, for her to reply to me, "my bad." It sure was her bad. It took me nearly the entire school year to get my hair grown out to the regular length that I wore it again and the right shape. This was my first experience with the newly coined phrase or words, "my bad", and to tell you the truth I've never liked it since and don't use it now. I do hear others use it frequently though.