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1.
A massive shit that one has to take mid-afternoon. It was named after a co-worker who would always disappear for 20-30 minutes around 2 pm everyday.
Oh shit, I have a brunson brewing.

I've got to go take a brunson.

What a massive brunson I just took.
by Super esoteric July 11, 2008
 
2.
1. A code word for African American people.

2 A slang term used to refer to an African American.
1. "Dude there were so many Brunsons at that hip hop show."

2. "Yo waddup Brunson?"
by gspfan88 December 18, 2010
 
3.
A name derived from the son of a brown haired man.(brown son)
His name was George Brunson.
by Jake Dope September 14, 2008