daggers drawn, at

daggers drawn, at idiom
Also, with daggers drawn. About to or ready to fight, as in Are Felix and Oscar still at daggers drawn over the rent? Although daggers today are rarely if ever used to avenge an insult or issue a challenge to a duel, this idiom remains current. Its figurative use dates from about 1800.

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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