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

Word Origin and History for chicken-shit

1947 (n.) "contemptible cowardly person;" 1948 (adj.); from chicken + shit (n.).

Online Etymology Dictionary, © 2010 Douglas Harper