Hello - been a while, just catching up a little and found this 
I definitely feel as though political correctness has gone too far, way too far and everyone should just take it a bit slower and calmer, but sure, there are definitely unfortunate and undesirable combinations that should probably be removed to avoid any misunderstandings.
Ditch any clearly negative words, for example why are vulgar, angry, mad, poor, rude, crazy, killer, etc… even in there in the first place? Keep the words neutral or positive.
I particularly find the potential for mental health slurs to be of some concern, that is, I don’t think it’s cool to have Crazy Wife, Crazy Cow, Mad Lady, for example. I am sure there are others in this vein.
I agree with the suggestion to ditch the human side of things; boy, girl, hubby, wife, lady, youth, to remove any possible association with people.
I really like the suggestions made so far that inherently remove the possibility of accidentally creating anything that could be offensive. Personally, I would aim for a list of words that generally avoids unfortunate pairings rather than maintaining a list of suppressed combinations.
The planets and cities are cool 
Although you could end up offending a whole city I guess 
How about:
Weather related terms; sunny, rainy, etc…
Synth terms; slider, knob, switch, socket, button, etc…
Household items; table, chair, lamp, cup, glass, cushion, pillow, shelf, etc…
Workshop tools; hammer, spanner, saw, punch, drill, etc…
Hope this helps and good luck!!