Rhyming slang for 'grin'.

A casual invitation / threat used by an individual that is not afraid of fucking someone up.

A groundbreaking and revolutionary new way for gangsters, thieves and other assorted pikeys to steal money out of your bank account in a way that means they don’t have to practise your signature anymore. A “chip” is inserted in your bank card that contains all the details of your hard-earned savings account so that in the event of someone stealing your card, all of the information is right there for them.