A small syringe for douching the vagina, esp. as a contraceptive measure. It is a device used to introduce a stream of water into the body for medical or hygienic reasons, or the stream of water itself. The word comes from the French language, in which its principal meaning is a shower (it is thus a notorious false friend encountered by non-native speakers of English; the phrase for vaginal douching is douche vaginale, meaning vaginal shower)
An individual who has an over-inflated sense of self worth, compounded by a low level of intelligence, behaving ridiculously in front of colleagues with no sense of how moronic he appears