To have Big Back Bison Disorder means that you suffer from chronic eating which has caused your back to grow as big as a bison's.
"omg she has big back bison disorder!!!"
by kbnk.z February 02, 2024
by Denver1932 August 12, 2020
.
by SuelTameOresuTeMato February 25, 2025
Get the Messenger Add Oak Is Master Bison mug.