someone who is long in the body, resembling a big worm.
usually spotted between the months of febuary and april nestling in cinemas or on the beach between cliffs before the torso splits open revealing a bright and shining butterfly
'big worm, you are beautiful'
'dadddy when will i split out of my long body and become a butterfly?'
'look between those two cliffs, its a couple of big worms'
'great!'
Harry's mate Tom is such a Big Worm, I saw him at a forum in Feb and thought he was OK but the next week he was caught in an alleyway pissing on a small boy