Wikipedia
Catanyol
Catanyol is a portmanteau of the words ( Catalan) and ( Spanish). It is used in a pejorative sense to refer to the mixed variety of the Catalan language, written or spoken, produced by the influence of the Spanish language in Catalonia.
There are authors who value the existence of Catanyol as a positive sociolinguistic phenomenon when it originates from Spanish speakers who learn Catalan as adults, while others consider that over a long period it could cause Catalan to become a dialect of Spanish.