look up any word, like fellated:
 
1.
X Multimedia system, like WinAmp but for linux
Dude, get Winamp!
I can't! I have linux!
Well then get xmms!

Okay, lame example...
by phoenix November 27, 2003
 
2.
XMM
means Xiao Mei Mei
which means small girls (underage)
Hey, that XMM looks chio right?
means that small girl look pretty right?
by Mr.Nothing June 25, 2008