Yo mama so stupid somebody said "What's your IQ?" and she said gesundheit.
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Your mom's so dumb, she threw the dog and told the stick to fetch!
 273
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Yo' Mama is so stupid, she's as useless as a screen door on a submarine.
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Fool me once shame on you, fool me twice and Chuck Norris will roundhouse kick me for being stupid.
 261
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A blonde was having sharp pains in her side. The doctor examined her and said, "You have acute appendicitis." The blond yelled at the doctor... "A cute appendicitis! I came here to get medical help, not get a stupid compliment!"
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