This action consits of a line of naked women in a bent over position. Xylophoning is the action of runing while inserting and removing the penis from the begging of the line and going to the end of the line of women. This action is repeated multiple times until ejaculation occurs. The Xylophone is a fun way to mix up group sex.
Man, did you see those girls that Jacob had The Xylophone with last night, they were smokin hot.
by A Town June 01, 2007