look up any word, like pussy:
 
1.
MXE
Methoextamine. Mexxy, Maxi, M-Ket. A fantastic legal drug. A Research chemical alternative to ketamine.
I've got hold of some of this new MXE, let's drop a Maxi and ruin our sunday
by bad, bad man. May 17, 2011
 
2.
mXe
Moral Edge.

You don't have sex, drink or do any type of drugs, because it is against your morals.

Comes from the word straight edge.
mXe

not because its a trend
because it right
by Ashley Brunelle April 30, 2007