The sweetest girl who anyone can possibly know. A little girl who was a fighter and fought for about 6 years. Beautiful, smart, and Justin Bieber's biggest fan. Avalanna was known by millions and fought long and hard, she is now an angel up in Heaven. Great job Avalanna :)
by BelieberGiraffe2845 December 24, 2012
Get the Avalannamug. 6 year old Avalanna Routh, diagnosed with brain cancer is known as Mrs. Bieber after a "wedding with Justin Bieber" at the hospital.
by anonymousr2d3 January 6, 2014
Get the avalanna routhmug.