December 16th

National buy your other gender bestfriend McDonalds day.
First to say it is the one who gets the McDonalds for free.

Boy Bestfriend "Hi, friend. It's December 16th"
Girl Bestfriend "Oh no"
Boy Bestfriend "You have to buy me McDonalds"

December 13th

December 13th is National you have to buy McDonald's for your friend day.

"Hey, its December 13th"
"Oh no, I have to buy you McDonalds"
"Yes, you do hehe"