Lehaim Share definition Flag Lehaim (interjection) is a drinking toast. It's from Hebrew, and means, "to life." A:"Wow, this is a great party!" B:"Lehaim, dude!" Lehaim by BecauseIcanIfIWantTo April 3, 2010 0 0 Get merch Get the Lehaim mug. Buy Now — $32.95 See more merch