TANSTAAFL

Definition

Acronym of there ain't no such thing as a free lunch: something advertised as being "free" will invariably have hidden costs.

Etymology

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

Example Sentences

• ""Gospodin," he said presently, "you used an odd word earlier--odd to me, I mean..." "Oh, 'tanstaafl.' Means 'There ain't no such thing as a free lunch.' And isn't," I added, pointing to a FREE LUNCH sign across room, "or these drinks would cost half as much. Was reminding her that anything free costs twice as much in long run or turns out worthless.""
• "'Tanstaafl. There ain't no such thing as a free lunch. We both know that I was brought here for a reason. If we could get down to business.'"
• "The TANSTAAFL principle applies to all techniques of statecraft, not just the economic ones."