Bombay duck Mail (or Bombay "Daak") thus reeked of the fish smell and "You smell like the Bombay Daak" was a common term in use in the days of the British Raj. In Bombay, the local English speakers then called it so, but it was eventually corrupted into "Bombay duck". Nonetheless, the "Oxford English Dictionary" dates "Bombay duck" to at least 1850, two years before the first railroad in Bombay was constructed, making this explanation unlikely. According to local Bangladeshi stories, the term Bombay duck was first coined by Robert Clive, after he tasted a piece during his conquest of Bengal. He
What Love Is Made Of three minutes and fifty-five seconds (3:55), "What Love Is Made Of" is an uptempo dance and house track that has been described as "rave-y" and "trance-y". Its instrumentation contains the sounds of pianos and synthesizers. Jordan Sargent of "Spin" observed that it continued the musical style first introduced in Katy's 2012 extended play (EP), "Danger EP", which was "straight-forward house". Idolator's Sam Lansky compared her performance in the song to recording artist Siobhán Donaghy. Critical response to "What Love Is Made Of" was generally positive: most critics noted Katy's vocal performance and commended its sound. Siân Rowe from "NME" was