I am not aware of any particular slang used by doctors to describe alcohol. They just call it whatever type of alcohol it is - rubbing alcohol is isopropyl alcohol; you also have ethyl alcohol or ethanol, which is the sort of alcohol that people drink; and methanol, which is poisonous.
Here are some slang terms for potatoes:SpudsTatersMurphyTots
fine
firebug
The slang terms I'm familiar with are: P.I. Private Eye, Peeper and Dick
Here are some examples:CarJalopyFlivverRide
bucksgreenbacks bills
Angel dust
Hoops, bangs
Pito grandote
soda is sody
shela
Fabu. or Fab.