Locust is weed that's loud & exotic.
AK47 Trainwreck, Girl Scout cookie, purple, kush, sour diesel, grand daddy o g kush are all types of weed so loud they buzz like a plague if locust.
The urban dictionary editors are proli smoking a 'rillo of locust right now, which is how they were too high to approve this definition last time. Turn down for what UD? To approve this term already smoked by John the Baptist.