Talk:Code switching

In Pakistan, TV commerials tout products with expressions like "Number vun pukka chai!" (i.e., "the #1 proper tea"). How "number vun" came to be adopted into Urdu, I don't know, but it's obviously from English. English-language newspapers in Pakistan are written in an adapted and evolved English English, but for some reason a sprinkling of Urdu terms are retained, for no apparent reason; prominent among these is the word "dacoit" (bandit, robber), and the papers normally are replete with stories of "dacoities" on the highways.

Is this "code switching"? When Americans (rarely) use terms like "joie de vivre", pronounced with passable French accent, is that "code switching"? The term "code switching" bothers me, because a language, strictly speaking, is not a code, and almost anything uttered quite idiomatically in a single language can be perceived, in context, a "coded" message, by subtle implication.