It's a long story lol. I created Arroll on DA when I was still in highschool more than a decade ago. Back then it was a secret code containing my name and name of the girl whom I had a crush on and was following secretly on DA lol. I started using this account again a few years ago to actually post the work I do, and for a while this name kinda had no other meaning.
Recently, I've come to realize that I had a huge interesting in producing cinematic-like sequences and scenes, sort of like the definition of A-roll: (television, film) The primary footage for non-narrative or interview based film, and usually refers to talking heads or footage that directly relates to the moment.
And thus the name change =D