Bug, as a phone, is a term used to describe a mobile phone that has been modified to allow for the installation of third-party applications and software. This type of phone is often referred to as a 'jailbroken' phone, as it has been unlocked from the restrictions imposed by the manufacturer. The term 'TAP' is an acronym for 'Technical Assistance Program, ' which is a service offered by some mobile phone companies to help customers with their jailbroken phones.