look up any word, like cleveland steamer:
 
4.
1. comically functioning with little or no reason
That worker is all monkey business.
by Neviar September 28, 2003
 
1.
Word for some kind of shady activity.
"Those dogs have some serious monkey business going on." -Dude witnessing a nearby drug deal.
by osmo2 January 18, 2004
 
2.
It means all of the following: crazy shit, being shady, lies. You tend to use the term casually.
Girl: Can you let me borrow some cash? I'll pay you next week.

Dude: I don't think so, that sounds like monkey business.
by Lucifer firefly February 26, 2012
 
3.
Monkey business can involve a psychopathic hunt or control of victim or victims that can endure for years where the victims endure a steady decline of resources altogether and of their own health, becoming depressed and suffering constant harassment and pressure from various threats.
This interpretation of the dubious version of the concept, I think, to one end or another, is associated with the brown remains of a smaller person, typically a kid. You know, this may happen when you're exposed to psychopaths. They take their victim to some place where they do their freak stuff, reducing this (young) person to this brown, i.e., bloody by stark blood, burnt skin, dirtied by feces, lifeless, insidiously treated object! This goes for nothing less than torture and has some value to dubious people for "energy reasons"/"stratagems"/"efficacies of kind", so and so!
I'm telling you right now, beware of these idiots!!! More serious than this, it can't get!
Tortured abducted kid is found dead. It's probably the victim of monkey business. - Police report
by Mr Lea April 15, 2011
 
5.
A business run by niggers.
Whats with all the monkey business?
Idk, everybody knows that niggers lack the mental capability to run businesses.
by asdf123asdf August 01, 2011
 
6.
Selling apes, gorillas, or chimpanzees for profit.
Mark made a killing with his new monkey business, they are going for $1000 bucks a pop!
by Preesty May 04, 2007
 
7.
Alright folks. Givin' somebody monkey business, is when you're having sex them with using an unpeeled bannana, and then proceed to poo in your hand and fling it at the person's face.
Dude your mom was being a whore last night after i suprised her with some monkey business.
by Zack Connolly July 09, 2005