Censorship for you
Dawn Eden reports on Planned Parenthood Golden Gate chapter is currently attempting to censor the USCCB's pro-life ads. Jill Stanek has more on this and truth checks Planned Parenthoods "truth check" of the USCCB's ads. Their email letter to subscribers starts by saying:
Many supporters like you have informed us that the antis are back at it again.
Antis is some strange shortcut slang, but it sounds like something they would call us. They will never see that us as pro-life, but anti-abortion so antis is the natural result. So since they are against us pro-life supporters I guest that makes them anti-antis.
Known as 
Well, since they're against life, they can be also be called "antis" as well. Perhaps "anti anti-antis"??? (Guess it work both ways...)
I don't mind being called anti-killing.
Sounds like Aunties ...
In antis is a particular kind of Greek temple, where instead of columns it has walls projecting out at the corner. The stub walls are called antae. So I suppose to be between walls is ok.
I prefer being called the "pros", for obvious reasons. That way in the hopeful future, they will truly be known as "cons". As in "con-vict".