LAS LENGUAS INGLESA Y ESPAÑOLA de Delfín Carbonell

A situation of chaos, confusion, or disorganization has been expressed as a Chinese fire drill since the mid-fifties .  This is now considered offensive to the Chinese, and individuals of Chinese descent may take offense. The equivalent in Spanish is also politically incorrect, as it may be considered a slur for people of African origin: merienda de negros .  So when a situation is confusing and chaotic, do not use Chinese fire drill or merienda de negros . Remember that forewarned is forearm! 

  I have found this online for Indian giver :  "Indian giver is considered offensive and derogatory. The term has historically been used to stereotype and demean Native Americans by implying that they give or trade something and then take it back. It is important to promote respectful and inclusive language that avoids perpetuating harmful stereotypes or demeaning any particular group of people." I agree with this, of course, but my question is: how can we express that idea now? What do we call a person who gives us a present and after a while wants it back?