1 definition by Thumb Master Poo
A recently formed yet very successful gang based out of Jensen Beach, Florida. With branches spreading as far as Orlando. The gang consist of many key members such as: Thumb Master Poo, Squirts, Big Dump, and Smelly Mike. Also there is rumor of the gang releasing a new album called 'Under My Thumb' with a potential hit single called 'We Just Thumb'n'. Ways to identify a Brown Thumbs member is a BT located on their neck as well as their thumb tattooed brown.
by Thumb Master Poo February 16, 2015