Okay kiddo, let me break this down for you. A draft dodger is someone who doesn't want to go fight in a war, so they do things to avoid being picked to be in the army.
Let's say your teacher wanted everyone to play a game of tag at recess, but you didn't want to play. You might try to hide so no one could find you, or pretend you were sick, so you didn't have to play. That's kind of what draft dodgers did, but instead of a game of tag, it was going to war for their country.
Now, there was a time when the United States had a draft system, where they randomly picked men to go serve in the military. Some people didn't believe in the war, or they were scared to go, or maybe they didn't want to leave their families behind. These people might try to get out of going to war by doing things like moving to another country, pretending to be crazy, or even paying someone else to serve in their place.
Now, it's important to remember that there are consequences for dodging the draft. In some cases, it's against the law, and you could get in big trouble. But some people felt like it was worth the risk to stay out of the war.
So, that's what a draft dodger is. Someone who doesn't want to go fight in a war, and tries to avoid it in different ways. But remember, it's always important to follow the rules and do what's right, even if it's hard.