Y.T.

Yours Truly; the speaker him- or herself.

From the book "Snowcrash" by Neal Stephenson.

He's got to go to work. Unlike Y.T.

by The Grammar Nazi July 7, 2002

Y.T.

AIM/chat abbreviation for "you there?"

Hey, yt?
Yeah, wassup?

by Rydel April 1, 2005

Y.T.

Young Teen, a young prospect usually 12 - 17.

"Look at that Y.T. she's such a slut"

by KEEBLER ELF July 17, 2006