1. monkey business - Noun
2. monkey business - Phrase
mischievous or deceitful behavior
Source: WordNetIt has been suggested that an army of monkeys might be trained to pound typewriters at random in the hope that ultimately great works of literature would be produced. Using a coin for the same purpose may save feeding and training expenses and free the monkeys for other monkey business. William Feller
Workin' in the fillin' station - too many tasks. Wipe the windows - check the tires - check the oil - dollar gas! Too much monkey business. Too much monkey business. Don't want your botheration, get away, leave me! Too much monkey business for me! Chuck Berry
Chico's own piano composition "I'm Daffy over You" would be played again in their next feature film, Monkey Business, by Harpo on the harp. Source: Internet
Laurel (played by Marilyn Monroe ) flirting with Dr. Fulton (played by Cary Grant ) in the film Monkey Business Etymology The origin of the word flirt is obscure. Source: Internet
And we will check, so don't try any monkey business! Source: Internet
In high school, I continued to help ESL students (no monkey business) but also started tutoring kids in science and math. Source: Internet