a penny whistler
A penny whistler is a fart so loud it could wake the dead and make your grandpa cry.
My dog let one rip during the church service. The priest started praying for my dog's soul.
My sister's penny whistler woke up the whole neighborhood. My mom got a call from the police.
At the dinner table, my uncle's penny whistler was so loud it made the dog run out of the house.
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