As a noun wog
is (british|slang|pejorative|ethnic slur) any dark-skinned person most commonly used to refer to people of indian, north african, mediterranean, or middle eastern ancestry or wog
can be abbreviation of polliwog or wog
can be a minor illness, a bug, an insect or parasite or wog
can be (scientology) an acronym for "without goals", ie a person who is not a scientologist or wog
can be wog = water-oil-gas, typically marked on valves indicating acceptable for use with these fluids.
As a verb wog
is (slang) to steal.