Top Definition
A sci-fi and gaming convention that has been running on the campus of JMU for over 20 years.
"Hey, did you see all the nerds on campus?" "Yeah, it's that Madicon thing again."
by JMUNerd February 22, 2012
A bastardized Spanish version of mother-fucker
Besa me coolo, madicon! (Kiss my ass, mother-fucker!)
by miaham July 25, 2008
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.