I was only able to find information about the abbreviation "SXY" not "SXEY". The abbreviation "SXY" is short for the work "sexy" and is commonly used online on social networking sites.
Justin Chatwin is a Canadian actor, born in 1982 in Nanaimo, British Columbia. His acting career took off beginning in 2001. He has had numerous roles but apparently became noticed after his role in War of the Worlds in 2005. He is now in the television show, Shameless.