| Acronym | Meaning |
| YAGB | You Ain’t Grizz Baby ( ) |
| YALA | You Always Live Again |
| YANA | You Are Not Alone |
| YATB | You Are The Best |
| YATK | You Are Too Kind |
| YATLOML | You Are The Love Of My Life |
| YAVW | You Are Very Welcome |
| YAW | You Are Welcome |
| YBS | You’ll Be Sorry |
| YBTJ | You Be The Judge |
| YBW | You’ve Been Warned |
| YBWM | You Belong With Me |
| YCMIU | You Couldn’t Make It Up |
| YCMU | You Crack Me Up |
| YDEK | You Don’t Even Know |
| YDI | You Deserve It |
| YDK | You Don’t Know |
| YDL | Yellow Dog Linux |
| YDMS | You Don’t Make Sense |
| YDMT | You Don’t Mean That |
| YDS | You Don’t Say |
| YDU | You Don’t Understand |
| YF | Your Friend |
| YFW | Your Face When … |
| YG | Young Gangster |
| YGG | You Go Girl |
| YGI | You Got It |
| YGLT | You’re Gonna Love This |
| YGM | You Get Me? You’ve Got Mail |
| YGPM | You’ve Got Private Message |
| YGTBK | You’ve Got To Be Kidding |
| YGTBKM | You’ve Got To Be Kidding Me |
| YGTI | You Get The Idea |
| YGTR | You Got That Right |
| YHA | Youth Hostel Association |
| YHBT | You Have Been Trolled |
| YHBW | You Have Been Warned |
| YHGASP | You Have Got A Serious Problem |
| YHL | You Have Lost |
| YHM | You Have Mail |
| YHNI | You Have No Idea |
| YHTBT | You Had To Be There |
| YID | Yes I Do |
| YIK | Yes, I Know |
| YITB | Yours In The Bond |
| YITE | Are You All Right? |
| YJLTG | You Just Lost The Game |
| YK | You’re Kidding |
| YKHII | You Know How It Is |
| YKIMS | You Know It Makes Sense |
| YKTR | You Know the Rest |
| YKW | You Know Who |
| YKWIM | You Know What I Mean |
| YKWIS | You Know What I’m Saying? |
| YKYLM | You Know You Love Me |
| YL | Young Lady |
| YLI | You Love It |
| YLM | You Love Me? |
| YLOD | Yellow Light Of Death |
| YLYL | You Laugh You Lose |
| YM | Yahoo Messenger Your Mom |
| YMBJ | You Must Be Joking |
| YMCA | Young Mens Christian Association |
| YMCMB | Young Money Cash Money Billionaires |
| YMMD | You Made My Day |
| YMML | You Make Me Laugh |
| YMMS | You Make Me Smile |
| YMMV | Your Mileage May Vary |
| YMW | You’re Most Welcome |
| YNK | You Never Know |
| YNW | You’re Not Welcome |
| YNWA | You’ll Never Walk Alone |
| YOLF | You Only Live Forever |
| YOLO | You Only Live Once |
| YOMB | You Owe Me Big |
| YOYO | You’re On Your Own |
| YP | Your Problem Yes, Please |
| YQW | You’re Quite Welcome |
| YR | Yea, Right. |
| YRG | You Are Good! |
| YRMV | Your Results May Vary |
| YRO | Your Rights Online |
| YRU | Why Are You…? |
| YSC | Your So Cute |
| YSI | You Stupid Idiot |
| YSK | You Should Know |
| YSMTU | You So Made That Up |
| YSS | You Suck Severely |
| YSVW | You’re So Very Welcome |
| YSYL | You Snooze, You Loose |
| YT? | You Think ? |
| YTB | You’re The Best |
| YTD | Year To Date |
| YTM | You’re The Man |
| YTML | You’ll Thank Me Later |
| YTMND | You’re The Man Now, Dog (website) |
| YTO | You’re The One |
| YTP | YouTube Poop |
| YTTM | You Talk Too Much You Talking To Me? |
| YUM | Said when something tastes good or is attractive |
| YVW | You’re Very Welcome |
| YW | You’re Welcome |
| YWCA | Young Women’s Christian Association |
| YWIMC | Your Wish Is My Command |
| YWSYLS | You Win Some, You Lose Some |
| YWU? | Yo Waz Up? |