from The Century Dictionary and Cyclopedia
- n. A small oil-can with a tapering spout and a flexible bottom. By compressing the bottom with the thumb, the volume of the interior is slightly reduced, and a drop or fine jet of oil is projected or flows from the tip of the spout. Larger cans pour the oil out, but these will not do so except at a very slow rate and with very limpid oil.
Sorry, no etymologies found.