Okay kiddo, so when we talk about "congener," we are actually talking about different types of molecules that are formed during the process of making things like alcohol or other drinks. These molecules have different properties and can affect how a person feels after drinking something.
Imagine you're making a painting with different colors. You can mix yellow and blue to make green, or mix red and blue to make purple. Similarly, when making drinks, different molecules can mix together to create new molecules - these new molecules are called "congeners."
Some types of congeners, like methanol, can be harmful to our bodies and make us feel really sick if we drink too much. Other types, like acetone, may make us feel hungover or dehydrated.
So when people talk about "congeners" in drinks, they are really talking about all of these different molecules that are formed during the process of making the drink. Different drinks have different types of congeners and this can affect how we feel after drinking them.
In summary, congeners are different types of molecules that are formed when drinks are made, and some of them can make us feel sick or hungover if we drink too much.