An abbreviation of the word "Excuse Me." It gets its sound from combining the "X" sound in "Ex," the "U" sound from "c-UE-se" and of course the "M" from "Me."

It can also be used as a question, as in "Pardon me?"
Example 1:
*Someone sneezes*
Someone: "Xum."

Example 2:
A: "Does it smell like Up Dog in here?"
B: "Xum?"
by Allan Wood March 11, 2008
Get the Xum mug.
A funny word that can be used for anything ,

Sounds like cum no it’s Xum!
Eat my Xum or I’m finna Xum . Want some Xum?
Dude she made me xum . I’m Xummified .
by Thykriss April 21, 2022
Get the Xum mug.
Like yum or awesome, used to describe something that is fun or cool.
Its pronounced "zum" First used in in the online comic strip "ALLAN"
JEN: Did you see "Donnie Darko?"
ALLAN: Yeah! It was really xum!
by Cm Bear February 3, 2008
Get the xum mug.