Cockamamie
来自Big Physics
1940s (originally denoting a design left by a transfer): probably an alteration of decalcomania.
wiktionary
Possible corruption of French décalcomanie(“process of transferring designs onto surfaces using decals”); sometimes erroneously claimed to derive from Yiddish. [1]
etymonline
cockamamie (adj.)
"mixed-up, ridiculous, implausible," 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). There is a 1945 recorded use of the word apparently meaning a kind of temporary tattoo used by children.
