1. A word used during extreme excitement. The word is very similar to "Bossy" but with the only difference of extenuating the "ay" in "Bossay". Term was first created when a group of Penn State University Students went to Kiawah Island, SC in March of 2006/2007/2008/2009
2. Bossay can also be used as a notion of coolness, wealth or gratitude.
She doesn’t want it in the steam shower, she wants it at the beach ... Bossay!