For you search query Biw we found around 171439 songs. We may show you only some of them on this page. On May 6 @CavasShips tweeted: "#GD #BIW General Dynamics #Bath Iron Wor.. " - read what others are saying and join the conversation. Biw. 1. BIW BIW (short for Body in White) is a stage in automotive design and manufacturing. BIW refers to the body shell design of an.