What is Monkeypants?
1.
The super cool future ruler of the world who is usually obsessed with Alexander the Great and reading books about domination, innovation and how to rule a nation.
You're such a MonkeyPants!
Who do you think you are - MonkeyPants???
2.
An unusually potent term of endearment which can be employed to trump lesser terms.
"Sweetiebucket, would you go out and buy me a doughnut?"
"Of course, Monkeypants, I'd do anything for you."
See 
Random Words:
1. 
derives from being zooted
when you are just so high/drunk after a heavy night of partying
"hey how are you feeling?
 man, im z&a..