WellRoundedBBW
WellRoundedBBW (the Vegas bash) is an annual BBW get-together held by Brie Brown since 2012. From 2013 onwards it has been a weeklong event held in the summer.
It features an open bar, games, parties, and the like, and is widely regarded as one of the world's most famous BBW bashes.
Its website can be found here.