Frighorse
A woman who is so ugly (looks like a horse) that you can not bring youself to shag her so you just let her frig u off instead.
Mike "Ah mate took this lass home the other night"
Jono "did you shag her?"
Mike" no, she just wanked me off, she was a right Frighorse"
Jono "did you shag her?"
Mike" no, she just wanked me off, she was a right Frighorse"