A brown turtle is conducted much like a secret Santa. Except one gift is replaced with a log of shit. Everyone opens a gift in a Yankee swap fashion and whoever opens the log of shit (brown turtled) loses that years swap. Thus having to be deemed the brown turtle until the following Christmas.
Billy: "lets all pick a number for the brown turtle"
a turtle licker is a person who licks the end of a poo when it is just coming out of someone's bum.
these people get a good rush of adrenaline when doing this and think its a brilliant sensation.
''Kami Bolton licked Emily Taylors Shit Turtle As She Thought It Was A Good Thing To Do At The Time.....this means she is a Brown Turtle-Licker''