A bluejacker will send a phone contact that has a message written in the name field to other bluetooth device. These 'bluejackers' are usually kids who wear baseball caps and hoodies also hang around shopping centres and train stations bluejacking other phones with bluetooth within range.
A name called to people who watch future episodes of a box set without the expressed permission of original box set party. Often these persons will plead they couldn't help it and on occasions with promise not to do so. Often associated with those with poor morale judgements or weak resolve.
'you promised, you even arranged a time when we were going to watch episode 4 and 4,your nothing but a boxjacker'