a penny whistler
A penny whistler is a fart so bad it could make a dragon run away.
During the Zoom meeting, my boss let one rip. Everyone had to leave the meeting and take a break.
My cousin's penny whistler was so strong it smelled like rotten eggs and old socks.
At the bus stop, my friend's penny whistler was so loud the bus driver stopped the bus and yelled at him.
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