Never heard the term outies before, not sure I would allow it to be used. Depends on how it is said I guess.
They are called Innies and Outies. I first heard that term at a college camp. When DD catcher calls out commands to the fielders she address the players as Innies and Outies. I now hear it from TB coaches and other players as well. Maybe it will catch on in the Chicago area if you start using that terminology!!! Give it a try and report back in few months.