kissing cousins

kissing cousins idiom
Two or more things that are closely akin or very similar. For example, They may be made by different manufacturers, but these two cars are kissing cousins. This metaphoric term alludes to a distant relative who is well known enough to be greeted with a kiss. [c. 1930]

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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