Can't Argue With That Logic.

Me: Are you feeling better today? 
Younger Son: Yes, feel me!

Definitions.

Older son: What’s an enemy, Mummy?

Me: Hmm. Well, it’s sort of somebody you don’t like and who doesn’t like you.

Older son: Oh.

Younger Son (in an authoritative tone): NO, an enemy is a sort of purple thing.