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A fish/es that attacks you in some way.
Also a crazy bitch who breaks up with someone and goes out with their best friend.
"AHHHHHHH!!!!! The Man-Fyshe are gonna eat me legs off!"

"Did you hear about Sally breaking up with Bob and going out with Jim?"
"Yeah, she's a total Man-Fyshe."
by Shmexah Man July 25, 2009
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