Challenge Coin

I really didn’t have any idea what a challenge coin is. So, I asked Papa Kevin and my boyfriend if they can explain to me what a challenge coin is, but they both answer me that they don’t know and I should search it in Google. I find out that Challenge coins is a collectible coins and they are a very special type of coin. Now, I don’t understand why these two man that I ask a didn’t know about this coin. It is probably because it’s out of their interest? or they just really don’t care? Hmmm! well, at least now I have a little knowledge about this coin.