A somalian woman. The protruding forehead and teeth and the lump of hair at the back which is hidden under the usual somalian costume gives the head an appearance from the side which is similar to the shape of a light bulb.
A bunch of people up all night smoking meth in a bulb pipe thinking up crazy ideas for useless junk thay can have made in China and sell for a huge markup.
Last night, while high on meth, all the bulbheads came up with a useless cheese grater that will make them lots of money.