The noun monkey has 2 senses (first 1 from tagged texts)
1. (8) monkey -- (any of various long-tailed primates (excluding the prosimians))
2. imp, scamp, monkey, rascal, rapscallion, scalawag, scallywag -- (one who is playfully mischievous)
Overview of verb monkey
The verb monkey has 2 senses (no senses from tagged texts)
1. tamper, fiddle, monkey -- (play around with or alter or falsify, usually secretively or dishonestly; "Someone tampered with the documents on my desk"; "The reporter fiddle with the facts")
2. putter, mess around, potter, tinker, monkey, monkey around, muck about, muck around -- (do random, unplanned work or activities or spend time idly; "The old lady is usually mucking about in her little house")