are you talking about the blog url, or the blog title?
Akira Toriyama's Dr. Senbe; a character in Dr. Slump manga. Some friends of mine used to call me Dr. Senbe in elementary school, and there's no deeper meaning to that. and then I often jokingly say "Yah best", "Yah best", and some way or another I just put Dr. Senbe and the word 'best' togethyer, and ta-daah, you got dr-senbest lol
blog title: it used to be "on SnowY days", but now it's "a re-run on Life" ..why the change? just because.