V is for something or other

I've been seeing the letter V within a circle spray-painted all over the place. I have no idea what this is supposed to mean. Now, back when I was younger, the thing kids marked all over was the letter A within a circle, which was supposed to mean Anarchy. Just the concept that appeals to 14 year old boys. The V, I don't know. V is for Vitamins? Evidently not Verbosity. Possibly Valence shell electron pair repulsion? That must be it. The circle around the V would be a subtle reference to a spherically symmetrical s orbital. Something like that.