“How are the legs on that Chardonnay?” they ask you, and suddenly you realize you haven’t a clue what they’re talking about.
It’s ok. I’ll walk you through it:
Wine with higher alcohol content has this neat trick that let’s you recognize it, called “legs”. It involves surface tension and is called the Marangoni effect (boring but true). Basically, higher alcohol content cause the wine in your glass to “clump” as it flows down the side of your glass.
Sometimes people confuse the “legs” effect as an indicator of higher sugar content. They are wrong, and now you can explain why. You now have a leg up on them. Ha.