something whose solepurpose is to bring in money, and usually loads of it.
the speed trapsset up by the cops are just another cash cow to fill city hall's coffers.
By Luise
Cash Cow
(n.) A well-selling product into which no investment is put asides meagre marketing and production costs, yet price rises rise disproportionatley to costs, and well above inflation, milking the cow for all it's worth.