donkey work


noun

Informal. tedious, repetitious work; drudgery.
Also don·key·work [dong-kee-wurk, dawng‐, duhng‐] /ˈdɒŋ kiˌwɜrk, ˈdɔŋ‐, ˈdʌŋ‐/.

Origin of donkey work

First recorded in 1915–20