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1.
There Ain't No Such Thing as A Free Lunch.

Very old slang, dating back to before ain't became a legitimate English contraction.

I means that a prospect is too good to be true(TGTBT), in that you are being offered something for nothing.
Nate: Your eMail says Bill Gates will give you $250 for each person you send this to that sends it to someone else.

Uncle Dick: TANSTAFL.
by Ronin Catholic November 29, 2007
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