(no subject)
I'm not sure one exists, insofar as I can't think of an atomic, universally recognizable symbol that transitively means "dislike".
I submit skull. Pos: It's another body part, it's already in use as a symbol (albeit in other contexts) where it carries a universally negative meaning. (Yes, even if you think pirates are cool.) Neg: it's already in use as a verb, if a specialized one. (I'm thinkin' about competitive rowing.) (And, to be fair, I see that "heart" has an archaic transitive use, meaning "hearten".)
Any better suggestions? Hmm? Why do I need to know? Because this has been bugging me for days, that's why.
no subject
Avoiding card suits, I guess an appropriate organ would be the liver, since it produces bile. Not sure if people would recognize an icon of a liver, though.
no subject
I do not understand that bumper sticker.