Yo momma so stupid she bought a solar-powered flashlight!

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2  

"Have you heard my knock-knock joke?" asked the blonde. "No," said the brunette. "Okay," said the blonde, "you start."

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Only 3 things that are infinite 1.Human Stupidity 2.Universe 3.WinRar Trial

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1  

Yo mama is so stupid that when she got locked up in the supermarket she starved to death.

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Yo' Mama is so stupid, she asked if her drug test was multiple choice.

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1