my favorite TV show is 'Star Trek' ... sometimes abbreviated to 'Trek'. Trek fans are called Trekkers or Trekkies. Some lines from the show have become English expressions; for example, 'Beam me up, Scottie'.
This blog is mainly to explain a different English language expression every day. Sometimes I post other stuff. I also have a YouTube channel which is mostly about computer software: https://www.youtube.com/englishspacedog