MIWFWYD noun an unattractive middle-aged woman US An abbreviation of “Mom (or mother) I wouldn’t fuck with your dick.” The less commongly used opposite of MILF
The woman is a MIWFWYD and just about as sexy as an industrial drill press (but not quite). — Dennis The Peasant, dennisthepeasant.typepad.com, 23 November 2009
have you seen the legs of some of those XC90 (MIWFWYD). — goober, ferraichat.com, 26 October 2009