Definitions by Bithicus

Bumchin 

1. Having a chin that resembles an asscrack.

Wow, you have a really ugly bumchin under your mouth!

Bumchin by Bithicus May 13, 2005

Bithsauce 

1. Achieving high or extreme levels of "bith" or P.M.S.
2. Being a bitch but not actually being called a bitch.

Your mom is a bithsauce to the ultimate max.

Bithsauce by Bithicus April 21, 2004