look up any word, like the eiffel tower:
a mythical creature hailing from southern ontario, highly rare and coveted with only one member of the species in existence
Oh my god did you just see that monmon pass us? DO WANT
by JohnDraper November 10, 2011
When a girl likes to look at peoples blog, and dont reply or comment on them.
Rick: Yo this girl keeps checking my blog but no comments
Bill:damn she's a mon mon!
Rick: Damn that mon mon!!
by Acidplanet_Member October 22, 2005