by Big flee July 8, 2024

Essentially, is any big back activity. Not to be confused with backtivity. Big backtivities are things that contribute to a person forming or maintaining a big back.
"This man ate a whole family meal on his own and then finished off the pie for dessert."
"Man what? That's some big backtivity fasho."
"Man what? That's some big backtivity fasho."
by Marica Linn November 16, 2023

by @JDMboy2002 July 14, 2019

A big tough shit. One that you really have to use your anal muscles to push out after eating a big meal the night before. And it hurts like hell when you push it out. It is sort of like a variation of constipation.
by Smelly big jimmy August 28, 2018

by MatildaCleverClogs August 27, 2022
