When they say “liberals” I personally understand it as referring to liberalism in the textbook economic sense, i.e. support for private property, market economies, Age of Enlightenment ideals of personal liberty, and what could be called “bourgeois” democracy. You may be somewhat familiar with the economic definition of “liberal” from the term “neoliberal”, which refers to the types of market liberalization associated with Reagan and Thatcher.

So basically the confusion comes because in the popular discourse of the United States, political terms are often used with completely different meanings from their more international/proper definitions. This is made worse by the fact that leftists use a number of words, such as “anarchy” and “dictatorship”, in completely different ways than most of the rest of the world.

The issue of contradictory definitions is particularly problematic for me as a Norwegian-American leftist, because I might say “I’m a republican. I’d never vote for Liberals or Democrats in my life. I strongly oppose liberal ideology.” one moment, and then the next I might say, “Oh, no, I’m absolutely a liberal! I hate Republicans like nothing else and only vote Democrat.”, with these statements not being contradictory in the slightest because these words are all autoantonyms with meanings depending on who exactly you’re speaking to. And don’t even get me started on the American versus Norwegian Overton windows!

Edit: I guess you could say these are examples of what the What Is Politics? podcast refers to as political “worbs”. Great podcast IMO.