Definition of a (fat) lot of good
informal
: no use or help at all
"I've brought an umbrella." "A (fat) lot of good that will do now that it's stopped raining!"
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Great Words for Scrabble
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- Which of the following Q-without-U words means the number five in cards or dice?

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Merriam-Webster unabridged
Share a (fat) lot of good