To suffer an uncontrollable erection that tears through one's pantaloons. Only a select few suffer from this condition, which occurs each year by the light of the hunter's moon.
Though he may walk amongst us as a normal man, come the autumnal equinox he will summon the bone dragon, thereby revealing himself.
by Green-Hat April 22, 2010
Get the Summon the Bone Dragonmug.