LBH - Length, Breadth, Height. LBH - Frequently Asked Questions. LBH stands for length, breadth, height. So now you know - LBH means "Let's Be Honest" or "Loser Back Home" - don't thank us. What does LBH Full From stand for, Meaning, What is Full Form is? Check LBH meaning is Length, Breadth, Height where all Abbreviation, Acronym of LBH is. What is the full form of LBH ? This page is all about Full Form, Long Form, abbreviation, acronym and meaning of the given term LBH.