In general, no, you should not use vodka on your lappy. You probably should even be careful using isopropyl alcohol solution on laptops, too, given that it can destroy certain rubbers and plastics.
You really ought to use a product designed for this purpose. I mention such a product over on Retro in an answer for cleaning edge connectors, but it is safe and suitable for any electronics with or without mechanical parts.
The brand name I am most familiar with is "CRC QD Contact Cleaner". To quote the datasheet:
Ideal for telephones, PCs, relays, edge connectors, tape heads, buss
bars, circuits, contacts, printed circuit boards, switches and circuit
But I've worked at places where it was used to clean keyboards (for example, on PCs or CNC machines on a shop floor), too. You spray liberally and let the excess boil out (it has a much lower boiling point than alcohol) taking all the gunk with it.
Similar products are found industry wide, and your Mac was probably sprayed with, or dipped in, something like it several time during manufacturing and shipping. If you must use some sort of solvent on electronics, this is the stuff to use.
There is a variety that has a light lubricant used for wipers and potentiometers, which you don't want. Other than that, any of the well-know industry standard solutions, now easily fetched from online stores, will work.