Top Definition
when something is silly and hilarious at the same time and you can't make up your mind on which word you want to say, this word is most likely to naturally come out of your mouth.
Tim: “You must like getting spanked Farley, I guess it runs in the family.”

Jillian: "ha! that was sillarious!

Kid: "SHUT UP!...SHUT UP!"
by Tinbug January 05, 2010
10 Words related to Sillarious

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.