2)To be "monkeyed", incredibly stoned or drunk, to the point at one one becomes completely incomprehensible and scampers around on all fours
3) slang term for genitals
4)cockney slang for £500
5)usually affectionate term for an aquaintance
2)yo dude, you were so fukin monkeyed last night!
Yeh man, you were babblin lik a bitch an scamperin round for hours!!! Then you blacked out...
3)yo, her monkey is tight!
His monkeys supposed to be twelve inches!
4)OI! You owe me a monkey u dirteh lickle slag!
5)You lil' monkey!
But we're talking about another explanation of the meaning of the word. Monkey can also be used as an exclamation, like the word blimey. Blimey is used when something happens suprisingly, like when someone's getting jumped from behind.
Monkey is 100 % certainly evolved by a fifteen year old student in Norway. According to the rumours he was playing a computer game, and when things went wrong, he cried "Monkey!".