Once-Used App Share definition Flag An app that one has fun with once, then never really decides to use it again, and just ignores it. Angry Birds Rio was a Once-Used App for me, since it never was as good as the original Angry Birds. Once-Used App by b&bs August 4, 2012 0 0 Get merch Get the Once-Used App mug. Buy Now — $32.95 See more merch
