The term joey means they will do "favours" for people without asking will I get one back or simply saying OK (but all the time)... OK this is fine once in while but a joey is a bully victim in the end and is always doing these "favours" Be it on the playground or in the workplace. A joey will always be a joey. ala the fat bird who holds all her mates coats in nightclubs when there all dancing.
Also in Manchester a joey is a word for a taxi.
Pete: Ye I got him to go the shop for my cigs without enough money!
Sandra:Ye an wot?
Pete: He came back with a 20 deck an said nout.
Sandra: What a joey!