- ridiculous, pointless, or nonsensical: full of wild schemes and cockamamie ideas.
Origin of cockamamie
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- slang, mainly US ridiculous or nonsensicala cockamamie story
C20: in an earlier sense: a paper transfer, prob. a variant of decalcomania
Word Origin and History for cockamamy
American English slang word attested by 1946, popularized c.1960, but said to be New York City children's slang from mid-1920s; perhaps an alteration of decalcomania (see decal).
Online Etymology Dictionary, © 2010 Douglas Harper