A derogatory term for a large group of inept northerrn UK mountain bikers, the sort who need to pad up to
ride off a kerb, and get off and push up it. While this could be covered by the term "
all the gear no idea", the important distinction is the sheer number of these bikers-cum-walkers gathered together in one place blocking the trail for people who can actually ride and making the case for more relaxed gun laws in the UK.
See also
singletrackworld.