| Y | Why | |
| Y | Yawning | |
| Y2K | You're Too Kind | |
| YAA | Yet Another Acronym | |
| YBS | You'll Be Sorry | |
| YBYSA | You Bet Your Sweet Artichoke! | |
| YDKM | You Don’t Know Me | |
| YG | Young Gentleman | |
| YGBK | You Gotta Be Kiddin’ | |
| YHM | You Have Mail | |
| YKW? | You Know What? | |
| YL | Young Lady | |
| YM | Young Man | |
| YMBJ | You Must Be Joking | |
| YMMV | Your Mileage May Vary | |
| YNK | You Never Know | |
| YOOW | You're Out Of Work | |
| YOYO | You’re On Your Own | |
| YR | Your | |
| YR | Yeah Right | |
| YR | Year | |
| YRG | You Are Good | |
| YS | You Stinker | |
| YSW | Yeah Sure Whatever | |
| YSYD | Yeah, Sure You Do | |
| YT | You There | |
| YTF | Why The Freak? | |
| YTTT | You Telling The Truth? | |
| YVW | You're Very Welcome | |
| YW | You’re Welcome | |
| YWIA | You’re Welcome In Advance | |
| YYSSW | Yeah Yeah, Sure Sure, Whatever | |
| (-: to the Emoticons :-) |
