An imaginary term used to describe how a procrastinator avoid doing important tasks.
Often it is though of as whenever the rational decision maker wants to make a good choice like doing homework the monkey takes the wheel and makes the person procrastinate
Joe:hey don't you have a really important project due?
Henry:yea well my instant gratification monkey wants me to look through India through google earth!
Joe:well don't blame me I you end up flipping burgers for a living!
The "polite" term for spanking the monkey, choking the chicken, beating your meat, polishing your pole, having a wank, ect. ect. You get it. It's how the news man would tell the audience you've been jerking off.
In local news, city councilman McAccerty was allegedly found engaging in self gratification behind the bus shelter with a toy giraffe and a roast chicken. We go live on the scene of his press conference now.