Top Definition
From the film "TWIN TOWN" where 'Fatty' breaks his leg.
When discribed, someone says fattys leg's "fucked".

So when something is called "FATTYS LEG", means thats its fucked.
My car has broken down again, its proper fattys leg.
by Pwp June 27, 2006
5 Words related to Fattys leg

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