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blue-on-blue

British  

adjective

  1. military of or relating to friendly fire

    blue-on-blue contacts

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of blue-on-blue

C20: from the colour used to mark a country's own troops and allies on a military map

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

His campaign signs have the same blue-on-blue design used by the 2012 Obama campaign, and his entrance song at events, lifted from John F. Kerry’s acceptance speech at the 2004 convention, is U2’s “Beautiful Day.”

From Washington Post • Jan. 12, 2020

For a man who was straining to be let off the leash ahead of the campaign, Chris Grayling had a surprisingly low-key, restrained referendum, largely refraining from "blue-on-blue" attacks.

From BBC • Jun. 24, 2016

Sleek and nearly all white except for the lettering along its flank and the swirling blue-on-blue Airbus logo on the tail, it carries the official designation MSN001.

From BusinessWeek • Feb. 13, 2014

Streetwise alternatives may include a blue-on-blue cat-patterned bomber cardigan reminiscent of that ’80s hipster staple, the slouchy Members Only jacket.

From New York Times • Aug. 7, 2013

The memories of the blue-on-blue incident were like vines wrapped around a tree, both squeezing the life out of him and holding him in place, tethering him to that November day in 2005.

From Salon • Jan. 27, 2013