In a related meaning, a ripoff is a blatant or unscrupulous copy or imitation. This is also known as a knockoff. In both senses there is an associated verb "to rip off", but the location of the preposition differs between the two meanings:
In South Africa 'ripping off' can be making a joke of something that a person does on a regular basis.
Business vs. government: in his book The Big Ripoff, Timothy Carney blows away the deception that Big Business and the government are adversaries and that the government defends the average citizen.(The Big Ripoff: How Big Business and Big Government Steal Your Money)(Book review)
Jan 22, 2007; The Big ripoff: How Big Business and Big Government Steal Your Money, by Timothy P. Carney, Hoboken, New Jersey: John...