Top definition
A mysterious monster, with an unidentified appearance. If you are being chased by, or see a fashnooli, you really should run away. Sounds like a type of noodle.
"Hey, how are you?"
"I'm okay, but I've been better."
"What happened?"
"This fashnooli was chasing me for hours."
by Janie Scissorhands February 28, 2010
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