Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • There ain't no such thing as a free lunch; something advertised as being "free" will invariably have hidden costs.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

Acronym, originating in the early 20th century, and popularized by Robert Heinlein's novel, The Moon is a Harsh Mistress.

Examples

Comments

Log in or sign up to get involved in the conversation. It's quick and easy.