Also found in: Acronyms.
An initialism of "you have been warned," used primarily in text messages and online communications. OK, DiyGuy1978, YHBW multiple times about making comments like those. One more, and you're banned for good. A: "Be home by 8 PM sharp, or you'll be grounded for a week. YHBW!" B: "OK Mom, I get it. Sheesh."
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.