Comes from the name of the now infamous med student from North Yorkshire who was known for willingly leaving skid marks on women while having sexual intercourse with them.
Commonly used in a more abstract way to describe a betrayal of trust - the trust of women by men in particular.
- Girl1: You remember that guy who asked me to send him my essay? He has submitted it as his own work!
- Girl2: Aw you got fawthropped real bad!