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1.
to extrude feces from the bowel.Defecation or feceation (known colloquially as pooping or shitting). the act of eliminating solid or semisolid waste material from the digestive tract.

Used as a code word if one doesn't want to announce his intentions of shitting because of embarassment.
(within a crowd)Hey Mack, let's get out of this party. I need to make a ball.
by chork August 19, 2005
 
2.
To poop, crap, or shit.
That old man in WalMart tried to make a ball in his pants. He was in the electronic section.
by ChodeFace September 08, 2005