I can work out what two of them mean, 'troll face' & 'anry face' (google told me thats what they are called). But more and more are being made and they really mean nothing to me - I don't find the troll face ones funny either - so i don't even get the joke they are trying to make. Its why I asked if there was a guide to what they mean, so I at least understand why im not laughing.
It's not considered acceptable language in general conversation but it is very common. My friends and I often call each other "cunt" but think nothing of it. If we're in a group and someone say's or does something out of the ordinary it is often followed by a "look at this cunt"
Does everyone use cunt over there?