(For other uses see the disambiguation page TANSTAAFL.)
Tanstaafl, an initialism for There Ain't No Such Thing As A Free Lunch, pronounced "TAHN-stah-ful," has been popular as a fannish catchphrase since it appeared in Robert A. Heinlein's 1966 novel The Moon is a Harsh Mistress. Heinlein may have been first to initialize it, but he did not originate the phrase, which likely dates to the Great Depression.
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