It is a term of epic awsomeness. Its meaning similiar to that of the term "Thats Cool" or "awsome". The correct response to some one saying sweet monkeys is "in a blender".
"hey man, heres the $50 i owe you." "Sweet Monkeys!" "In a blender."
by Myke Lewis February 22, 2010
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Invented very recently, this word is used as an exclamation of various sorts, but noticeably an exclamation of overwhelming suprise.
Chris Bradford: How much is rent on that apartment?

Dude: $1500 dollars.

Chris Bradford: SWEET MONKEY BUTT FUCKER that is expensive
by mista_g October 28, 2005
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Male: Will you go to prom wih me?
Female: Sure.
Male: Oh sweet monkey balls!
by SupahNautical January 20, 2016
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