When a meme has become so popular that it appears on the news, TV, or anything elseoutside of message boards. When this happens, it is deemed too popular and forever called "OLD".
Music that always plays on the radio and the TV, and is on the top 40 list on every music software like iTunes and Spotify. It is quick-made on a computer, usually featuring not very good but good looking musicians (if they can be called that) and it is un-original and boring. People without any taste in music listen to it because it's easy to find and everyone else listen to it, so then they don't need to worry about being considered "different". Mainstream music songs usually stay on the top-lists for a couple of months or maybe a year, and then they're gone. Also, people who listen to it usually would call a 2 year old song "very old", though bands like Led Zeppelin still rock anyone's brains out with their songs from the seventees.
A knock off version of Counter-Strike global offensive on a popular Minecraft server call Mineplex. Minestrike Is just like csgo but it is for 6 year olds who lack parent supervision or for try-hards who are too lazy to accully get csgo. The league in Minestrike called the Minestrike Competitive League or know as the MSCL is like a cult of try-hards with no life or friends and join try-hard teams with try-hard names like Final Spark or Dissension. The MSCL is also like communism were if you talk shit about the owner you will get blacklisted. Blacklisted means you are temporally banned from playing in any Competitive matches. There are even referees in this cult and it is fairly organized for a bunch sad losers who have nothing better to do.
Minestrike is a very competitive game and requires lots of skill, no life, and no friends. If you are interested in Minestrike I would just buy CSGO it is a much better game and you might even make friends (unlike Minestrike Players). So pick up your mouse and keyboard, put on some pants and game on.
Music that focuses on getting stuck in your head and becoming so ubiquitus that you are forced to like it or else you will have clinical depression from hearing it so much. This music is almost always made by humans who are often called musicians (but in all truth, are not musicians) who manipulate their image for monotary reasons. This music often focuses on sounding much more technological than musical. Much pop and hip-hop to enter the top 40 has been mainstream crap since the '00's.
person 1: Man, Lady Gaga, The BEP, and other mainstream crap has been all over the place, it makes me want to commit suicide
person 2: I use to think the same thing, but now the music has grown on me
person 1: Nooooooooo! You failed in the battle to not get that music stuck in your head to the point where you have to like it! What has become of this world