An example of a bint is referring to your brother's girlfriend who you don't like.
Origin of bintAr, girl, daughter
nounChiefly British & Offensive
Origin of bintArabic daughter bn
The term entered the British lexicon during the occupation of Egypt at the end of the nineteenth century, where it was adopted by British soldiers to mean "girlfriend" or "bit on the side". It is used as a derogatory slang word in the United Kingdom, meaning 'woman' or 'girl'. Its register varies from that of the harsher bitch to an affectionate term for a young woman, the latter being more commonly associated with the West Midlands. The term was used in British armed forces and the London area synonymously with bird in its slang usage (sometimes brass) from at least the 1950s. The term has also famously been used in the classic film Monty Python and the Holy Grail, in which the Lady of the Lake is referred to as a "moistened bint", and in the phrase "grotty Scots bint" in the "English English" scene of the film Austin Powers in Goldmember. It also appears in the famed British sitcom Fawlty Towers, in which Basil Fawlty refers to his wife Sybill as a "cloth-eared bint."
In the Tyneside shipping industry , a Yemeni community had existed there (particularly in Laygate, in South Shields since the 1890's :- http://www.bbc.co.uk/nationonfilm/topics/family-and-community/south-shields-yemeni-riots.shtml The word entered the local language as it was Arabic for daughter. Although the term can be used in a derogatory sense, in general it refers simply to (usually young) females.