1. 
   code-switching
   alternating between two or more languages within the same utterance - a common feature of bilingual speakers
   Found op http://www.bl.uk/learning/langlit/sounds/find-out-more/glossary/
   
   
2. 
   code-switching
   (from the article `linguistics`) ...throughout the world, it is common for members to speak two or more different dialects and to use one dialect rather than another in particular ...
   Found op http://www.britannica.com/eb/a-z/c/104
   
   
3. 
   Code-switching
   In linguistics, code-switching is the concurrent use of more than one language, or language variety, in conversation. Multilinguals—people who speak more than one language—sometimes use elements of multiple languages in conversing with each other. Thus, code-switching is the use of more than on...
   Found op http://en.wikipedia.org/wiki/Code-switching
   
   

Tip: double click on a word to show its meaning.