Fill In The Blank - Steemit Challenge #2

RULES
First correct answer gets 0.1 STEEM.
All upvotes with a reply gets 0.001 STEEM, even if the answer is correct or not.
After 24 hours and there is not a correct answer, the leftover STEEM for the correct answer will we added on the next challenge.
The underscore is a missing letter or number.
One try per person.

Go ahead and figure out the answer.

Hint: Phrase
Good Luck....

Winner for Contest #2 @full-measure

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