"not on squeaking terms"
by the way I first saw this in the stubsuck
transcript
I know this is about rationalism but the unexpanded uncapitalized "rat" name really makes this post. Imagining a world where this is a callout post about a community of rodents being racist. We're not on squeaking terms right now cause they're being problematic :/
The point is that you are still calling it out as racism, a term racists very much don't like. Meaning, the "racism" is the important part in "scientific racism", because it unequivocally tells us that the science in question is shit.
The actual euphemism for sciency racism is human biodiversity studies.