These are the amazingpicturesthat couldbeabout to sparkthe latestviral Internet sensation after aformerprorugbyplayer has brought the 'HumanFlag' craze to the UK.
The Flag Institute maintains and manages the national registry of United Kingdom flags and this flag complies with its strict UKFlag Registry criteria.
Some say the term jack should only be used to refer to the flag when it's flown on a warship but according to the Flag Institute, which runs the UKflag registry, this is a relatively recent idea.