Used to insult Welsh people mostly. Can also be used to insult people like farmers, new-zealanders etc.
Person 1: "omg. that boy over there is so peng."
Person 2: "eurgh. no. he's a sheep-shagger!"
Person 1: "sickooooooooooooooooooooooo"
Person 2: "eurgh. no. he's a sheep-shagger!"
Person 1: "sickooooooooooooooooooooooo"
by FriendOfScoutBoy May 15, 2008