Definition of monkey motion in US English:

monkey motion

(also monkey-moshun)

noun

  • 1A monkey-like gesture or facial expression.

  • 2Military slang. In plural: physical exercises or drill. Compare monkey drill. Now rare.

Origin

Mid 19th century. From monkey + motion.

Pronunciation

monkey motion

/ˈmʌŋkɪ ˌməʊʃn/