A very very hairy lady-area. Often large, and brown in colour.
"I was going to perform intercourse unto Tarry, until I discovered she has a Monkey Lunchbox!"
The act of bidding and winning an item off Ebay, then realizing that you spent too much money and didn't want it anymore.
The result is that you end up not paying for the item and then lie to the seller as to why you're not buying it.
This is all done in an effort to avoid receiving negative feedback.
* This term came about after winning a $50 bid for an old lunchbox that featured a chimpanzee on it. A lie was created and told to the seller- No negative feedback was given.
I pulled a Monky Lunchbox when I didn't pay for a bootleg copy of Over the Top DVD I'd won.