It’s even worse when it does have meaning!
Recently I was asked “how can an opinion be a lie”? I was flabbergasted. This person had stated an opinion about another person’s position that clearly was wrong, I said it was a lie. That person had done the same to me a few times. So I told him, “an opinion is a lie when it is not true”. Then a man from Scotland chimed in and said that a lie is an untruth told with malice - that an innocent untruth told without intent to harm is not a lie. Wow. The problem is compounded when people act as if they know better what others think than those others do themselves. When they are called on it they say “that was just my opinion, how can an opinion be wrong”. The burden of proof becomes yours - they then demand that you prove their opinion of your position is wrong.
I’ve found that when coherence leaves a conversation the best solution is to walk away.
I’m afraid conversation would end when I asked which of their parents specifically raised them to be a lying c**ks**ker.