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back and fill

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Vacillate, be undecided, as in This measure will never be passed if the town meeting continues to back and fill. This term comes from sailing ships, where it signifies alternately backing and filling the sails, a method used when the wind is running against a ship in a narrow channel. The sail is hauled back against the wind and braced so that the tide or current carries the ship forward against the wind. Then the sail must be swung around and filled, to keep the ship on course. The term's figurative use for indecisiveness dates from the mid-1800s.

QUIZ
QUIZ YOURSELF ON "WAS" VS. "WERE"!
Were you ready for a quiz on this topic? Well, here it is! See how well you can differentiate between the uses of "was" vs. "were" in this quiz.
Question 1 of 7
“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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