Polish is synonymous of Catalan

The English-Catalan, Catalan-English Collins dictionary has included the term Polish (polaco) as Catalan. It means that Catalan is as difficult as the Polish language. Moreover, it connotes a very negative meaning especially for Catalan people who speak it. The origin may have come from the difficulty of understanding Polish by a Spanish speaker, who in turn also resists to understand Catalan. Surely, this would come as an insult for most Catalans.

See: www.e-noticies.com