since i asked the question myself (in a different thread), i guess i ought to answer. actually it's a tough one. phrases are out because they usually use old words to create new meanings.
happify is apparently out(!)
how about "vegan"? but it's not a word you could actually like.
what about "jazz"? some people don't like the music (for some bizarre reason), but the word is hardly offensive.

i'll keep thinking, but unfortunately, having a slightly pickled brain, it takes a looooong time for anything to come out.