Also found in: Acronyms.
An initialism of "live long and prosper," a catchphrase from the media franchise Star Trek, in which it is used as a blessing adapted from the fictional Vulcan language. In general use, the phrase is often used humorously as part of a farewell to wish someone good fortune or good health. A: "OK, I'd better go. Good chatting with you." B: "You too! LLAP." Loved your cosplay photos from Comic Con. LLAP!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.