According to the Racial Slur Database: Pork-Chop sounds similar to Portuguese, so I guess it's insulting.
lets see... POR-TU-GUESE.... PORK CHOP.... I don't hear anything other than the first 3 letters sounding similar. haha, even that was the case, that guy isn't Portuguese. btw..xero, i decided not to play OEpro.. because of something that happened in casual. I am tired of all the bugs and stupid nukebots. That was never an issue before.
Who knew pork chop meant blow job? It's also not offensive according to urbandictionary. http://www.urbandictionary.com/define.php?term=pork+chop