ANYTHING BUT THIS syndrome occurs when a relationship sours and your significant other doesn't care where the two of you go, as long as it's separate ways. Reconciliation is impossible.
I think my girlfriend has ABT syndrome. No matter how hard I try, it's just not good enough.
Person 1: I'm voting for Biden because of his environmental policies. How about you?
Person 2: I'm just an ABT voter.
Person 1: ABT what's that?
Person 2: Anybody But Trump.