1 I asked a friend to pour me a little tittle (of bourbon, of course). He did. The tittle was rather littler than I'd truly wished. I asked if he could make a double tittle — a doppio tittle, as it were. A tittlio? he suggested. Yes, indeed. So there you go: "tittlio" = "doppio tittle" ('cause sometimes that's exactly what you want). Feel free to use it.