A Jewish guido, a Jew with guido characteristics, commonly found among the Jews on Long Island who wear like "Chai" necklaces in the place of the traditional guido cross.
The Juidos drank Manischewitz before they went to the club.
A person that is half Italian half Japanese. Hence half Jap half gUIDO. This person will have both the traits of a Guido and a japanese person, or they will cancel out leaving a normal human being.
Scott: Hey man that chick was hot what was she asian?
Sam: Nah bro even better, she is a Juido
Chris: YEAHHH she is!