Ultimately, any sign or word is susceptible to being converted into something else, even into its opposite. 
Gil J Wolman
Cannot fail to be a powerful cultural weapon in the service of a real class struggle. The cheapness of its products is the heavy artillery that breaks through all the Chinese walls of understanding.
Gil J Wolman
Détournement is the flexible language of anti-ideology.
Guy Debord, La société du spectacle §208
Détournement allows one to correct the past: one takes a relatively well-known phrase and adapts it to one’s own criteria.
Raoul Vaneigem, Self-Portraits and Caricatures of the Situationist International