Top Definition
um⋅bril⋅li⋅on –interjection 1. an exclamation expressing wonder or pleasure at two people have the same idea or thought at the same time.
1.You were thinking of eating at Sweet Tomatoes too? UMBRILLION!
by Shing Poro BingBong May 27, 2010
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.