"You were the one who gave me those boxers? I wondered where they came from, I wear those! Although I'm not a big fan of flannel, it gets a little hot down there, if you know what I mean"

This quote by Joel Madden is most likely describing a gift he got from someone. He is expressing his surprise at the gift, as he was uninformed of the source. He also points out that he wears the fighters, although he is not a fan of the flannel material, as it can get too hot in specific areas. This could be interpreted as an amusing referral to the pain of using flannel fighters in heat. It might also be analyzed as a subtle way of expressing his appreciation for the present, as he is using it regardless of the pain. Overall, this quote is an easy going way of expressing thankfulness for a thoughtful gift.