When you get in deep with a particular hobby, you're bound to learn
a lingo to use when you're around other people who are into the
same hobby. As far as wine is concerned, there is a very distinct
lingo among wine aficionados. If you don't have a sense of
the wine lingo, you're going to feel really lost when you’re
around other people who are obsessed with the stuff.
A number of different terms are used to define flavor as well. Acidity refers to the natural acids in wine. If you're drinking a young red wine, you have to go through the aeration process, which involves swirling the wine around in a glass to soften the tanins, smooth out the wine, and allow the flavors to open up. If your wine is harsh tasting, you might refer to it as having an aggressive or alcohol taste. The alcohol taste comes when a wine tastes hot or peppery because the large level of alcohol overwhelms the fruit and balance.
Resources for Wine terminology, Alcoholic drinks and Wine tasting terms