Final answer:
Herbert Spencer coined the phrase "survival of the fittest" in the context of social Darwinism, but this concept has been discredited and used to justify discriminatory practices.
Step-by-step explanation:
The phrase "survival of the fittest" was actually coined by Herbert Spencer, an English philosopher, anthropologist, and sociologist. Spencer used this phrase in the context of social Darwinism, an ideology that applied Darwin's theory of biological evolution to human societies. However, it is important to note that this concept of social Darwinism, which promoted the idea of certain groups being more likely to survive, has been discredited and used to justify discriminatory practices.