Top Definition
The violent and often-times inadvertent sexual pleasure that one experiences after watching a large sum of Nathan Fillion on any given medium (film, television, etc.).
Dude, I just watched some re-runs of Castle and Firefly and I had such a Filliogasm.
by nicovela September 15, 2010

Free Daily Email

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

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×