chickenshit

[chik-uh n-shit]Slang: Vulgar.

noun

boring or annoying details or unimportant tasks.

adjective

obsessed with petty details.
menial or petty.
cowardly or fainthearted.

Origin of chickenshit

1945–50; Americanism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019