It beats me why this beautiful creeper is hilariously called 'The Drunken Sailor'. My best guess is that its flowers first appear as white then gradually changes to red as it stays older. It's a hardy climber and can reach pergolas, fences and roofs of building in quick time.
A CU View the 'Rangoon Creeper' flowers on a Kuching wall.The flowers are fragrant indeed and due to that is referred to also as 'red jasmine' on account of its jasmine-like petals and strong scent. Otherwise it is commonly known too as the 'Rangoon Creeper'(Quisqualis indica) which probably indicates its tropical origins i.e. Rangoon ( Myanmar, previously Burma)