This is a word that makes no sense. It is how Asian people confuse their enemies in a fight. E.g. Hey you, don't punch me in the face. Just Hit me in the curry and call me masala. Whilst their enemy is confused the Asian makes a run for it. This is a funny and confusing phrase because it makes no sense.
the cutest and most talented actress alive. in fact, she's the only actor alive. she is synonymous with playing every role possible, so how sure are we that she's not doing that this very second? how sure are you that your neighbor isn't tatiana? what about your teacher? parent? sibling? best friend? YOU?!
you: wow i really wish tatiana maslany were here.
tatiana: i heard my name..
you: hey tat, do you mind being me for a bit so i don't have to do jury duty?
tatiana: sure, dude! while i'm at it, i'll be everyone in the jury. and the judge. and the lawyers. and me being you.