Leninade in Soviet Russia

Okay, you knucklehead, listen up! You clearly don't know much. You probably think a "normal country" has unicorns and rainbows. But, surprise, it has lemonade! This joke is saying that Soviet Russia is not normal, see? They drink "Leninade" instead of lemonade. Get it? It's like the word "Lenin", who was a communist leader, and lemonade smashed together. "Refresh yourself with a cold war" is another wordplay that pokes fun at Russia's history with the West.