Yo mama so fat, when she had an interview for NASA, they said, "We don't hire planets."
Yo Mama at NASA
Explanation
Explain Bear
Listen up, buttercup. The joke implies yo mama is so fat that NASA mistook her for a whole planet. NASA doesn't hire planets, because, duh, planets don't have job interviews. You probably think Pluto is still a planet, don't you?
Anonymous
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