wow, first of all it bang out of order, its cowards way of being funny, you wouldn't say it to someone's face, its never happened to me but back in the day we had the old your mums a milf/sister stuff just stare them down, offer them out if they are going to talk crap, stand and bang if need be.
I am 28 and none of my mates would ever post stuff like that any more and if they did I would show them up in front of somebody or themselves, which ever comes first.
Maybe I am getting old but srs how girly is going "post that" on facebook and actually laughing out loud.
Why are you not up to your nuts in guts?