galaxy is in the universe
The noun 'so-and-so' (plural 'so-and-sos') is used to refer to a person whose name you've forgotten, prefer not to use, or want to avoid using:'I had a call from so-and-so, the guy from the Council,...
What is so bad about being so-so? Well a-lot of people like to be the best or have the greatest quality, therefore no one wants to be so-so.
So Hot by Trae
The sense it makes is that it comes in handy when you don't wish to use a harsher name/word or you can't think of the right name/word.