What is Sheep-shagger?
1.
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"
See
2.
Can be used as an insult or another name of a new zealander, or farmer
"where is he from?"
"oh, he's a sheep-shagger."
See