Expressica is not a dictionary word. I was thinking a name for my blog something with the word “expressions” but there wasn’t any domain available with the dictionary words also with the relevant combinations. At that time I was listening to Fuel(”Gimme fuel, Gimme fire, Gimme that which I desire”), a great song from a great and one of my all time favorite rock band Metallica. I just then thought some merger of expressions and metallica… and it turn out to be Expressions + Metallica which is now Expressica.