Bumchin

1. Having a chin that resembles an asscrack.

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

by Bithicus March 10, 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.

by Bithicus April 21, 2004