This phrase is used in place of a vulgarity, cursing, or other wordage that is not proper for use in certain areas and situations.
"Did I drop that hammer on your foot?"

"Yes you did you Sum Bitch Pile Monkey Nuts!"

-or-

"Yo man I was bangin the hell out of your sister last night!"

"Isn't that a sum bitch pile monkey nuts!"
by Milton and Alex March 7, 2008
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