'To monkey with' definitions:

Definition of 'To monkey with'

From: GCIDE
  • Monkey \Mon"key\, v. t. & i. To act or treat as a monkey does; to ape; to act in a grotesque or meddlesome manner. [1913 Webster]
  • To monkey with, To monkey around with, to handle in a meddlesome manner. [Colloq.] [1913 Webster +PJC]