It means "the opposite of expensive" Cheap in spanish is "barato"
contrary...for example Lo contrario de padre means the contrary of dad which is madre
"Contrario de con" in Spanish means "opposite of with." It doesn't form a complete phrase or expression in Spanish.
Mario De Caro was born in 1963.
Chuck de Caro was born in 1950.
Lorenzo De Caro died in 1777.
Lorenzo De Caro was born in 1719.
Julio De Caro was born on December 11, 1899, in Argentina.
Carlos Moreno de Caro was born on 1946-03-24.
Enzo De Caro was born on March 24, 1958, in Portici, Campania, Italy.
Julio De Caro died on March 11, 1980, in Buenos Aires, Argentina.
Mario De Caro has written: 'Dal punto di vista dell'interprete' 'Interpretations and Causes'
It could mean many things: opposite/unfavourable day of/to etc. It looks like someone took the slang American English term "opposite day" and translated it literally into Spanish. However, as such a term does not colloquially exist in Spanish, the term is nonsensical in Spanish as a specific idea.