486: bidet Apr 6, 2016

Plenty of bathrooms, especially in Europe, have bidets. 'Bidet' comes from mid 17th century word which in Old French literally meant ‘pony,’ which comes from the verb 'bider' meaning ‘to trot’. There's no consensus about the origin for that, although some have suggested that position one assumes riding a pony is reminiscent of using a bidet.