Definition of monkey-doodle in English:

monkey-doodle

Pronunciation /ˈmʌŋkɪˌduːdl/

adjective

informal US
  • Foolish, meddling, mischievous.

Origin

Late 19th century; earliest use found in Marshfield (Wisconsin) Times. From monkey + doodle, after flapdoodle, whangdoodle.