laughing dog said:
Dictionaries do not investigate meanings of word. They provide common understandings of words. When one uses a common word in an uncommon way (i.e. outside of the dictionary definition), then one is literally making things up.
No, they do need to investigate what the word means, by looking at the common usage or usages of the words. In a sense, that would be the same as investigating the "common understanding", as long as the expression "common understanding" is used to mean "what people commonly mean by the words", i.e., their
meaning. On the other hand, if "common understanding" means the most common explicit theories about what a word means, then no, that is not what they do. At any rate, what I say they do is correct, regardless of whether you are rewording it by saying "common understandings".
Now, of course, a person can use a common word in an uncommon way, and in doing so, they're either misusing the word (if they believe that they're using it in the usual sense), or providing a different definition if they so stipulate.
Regardless, the word "racist", like nearly all others, take their meaning from usage.
laughing dog said:
In the context of this thread, "racism" does not commonly mean referring to race.
What do you mean?
Obviously "racism" does not mean "referring to race", but it is about race. Or color, but color is being used (even if inaccurately) as a proxy for race.
laughing dog said:
JP's example is an example of stereotyping. In order for it to fall under the commonly understood meaning (at least by most dictionaries), it would need to also mean that Asians are either superior or inferior to another race.
No, that is not the case. JP's example is an example in which it is implied (for example) that White males are vastly less capable than Asians at math (e.g., "And as an asian, I'll do the math for you while driving"), and it is even said that in a mocking tone. It is an example of anti-White racism (not that JP actually means it, but it's the example).