Such as in the original poster's part of the country, wherever that
is, "tits" is considered foul language the same as
F.U. and other words he mentioned, while in my part of the country,
"tits" was never considered a foul or obscene
word like F.U. and other words the original poster mentioned.

The words were an allusion to George Carlin's famouse, "seven words you can
never say on television" routine. Since it was all over the news that he
died recently, I figured most people would have gotten the reference.