an alternative to the name alexander that is used when therre are too many people whos name is alex.
alex b.: hey alex s.
alex s.: hey alex b.
alex b.: hey alex B.
alex s.:hey alex q.
alex q.: dont call me alex anymore call me xander.
(Also one of the character's of Ally Condie's Matched is named Xander, it's an awesome book if you haven't read it... although be warned you will be dying to read Crossed afterward, and it hasn't come out yet...)