On the occasion of our 11,111th side_boob image, I'd like to hear the community's thoughts on how the tag should be used. Currently, the wiki's definition requires that the character is nude/topless, and that only one breast (and not the nipple) is visible. But that's not how side_boob is always used in practice, so perhaps we could expand the scope of the tag?
For example, which of the following, if any, should be tagged side_boob? (all but the 4th one currently have the tag)
post #567659 nipple visible
post #518675 breasts are not bare
post #327437 both breasts and nipples visible
post #785342 like image #2 but with less breast showing
post #783967 very liberal interpretation of "side boob"
Updated