from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A man who engages in or is said to engage in sexual intercourse with sheep; usually used as a slur for a rural person seen as unsophisticated.
- n. a term of abuse for inhabitants of various countries or regions which have large populations of sheep
From sheep + shag + -er - originally military slang. First used in the 1950s. (Wiktionary)