Thanks a bloody lot for this forum, I have spent the better half of the day reading all of these, and it is so much fun seeing the origins.
As for my username, I had a shirt that said "Sorry, I was not listening" when I was a kid which I loved. It kind of matched my personality, I used to be quite aloof. it also sounded funny. These reasons, I decided when I was like 10 to always use this username. But, the word sorry had to be omitted as it was too long. So, it became "Iwasnotlistening". Coming to more modern, games there was now a rule of only 16 letters, so I had to make it "Iwasntlistening" which it is right now and hopefully won't have to change forever.
This name is quite ironic to Osu! as it is a rhythm game, but well...
when I was like 11, I used to have "KhaledTheGamer" (myfirstname+thegamer) as my username on multiple accounts. a year later I decided to throw my middle name at it (Fayez) while keeping it short so I came up with FaizKTG.
My first username originally came from a nickname I had, but no longer go by as there was a fall out with the friends who used to call me it, so now it is simply from the name of one of my favorite songs, one that always makes me feel happy and peaceful.
I love that song so much, because despite residing in the UK for the most part now, I am in fact an Estonian, and very proud of that, and very proud of my country and its connections with nature and stuff. x3
My username came from my ROBLOX username which is "TheCrimson25" (I don't know how I came up with it, I can't remember) but I shortened it to "Crimson25" when I made my osu! account. I was making my twitch account and felt like Crimson25 was too boring so I had to think about a lot of things I could add to my username to make it cool, Bucket was the best thing I could think of, so my twitch username is CrimsonBucket and I later went on to change my osu! username to CrimsonBucket aswell.
I was originally Capo_Kid24 (which was my original online handle), but when I got supporter I decided to change it to what I wanted my official online handle to be since I was starting a YT/Twitch. This username started the rest of my online profiles with this username from then on