The act of putting a males balls into his anus, then in due time allowing a partner to give them oral sex, usually resulting in a suprise.
When I brown sacked Gruumm he found the taste suprising yet satisfying
by KyleVFD August 17, 2006
When you poop in your hands and smack someone's bare balls with it.
I had to wash my nuts because I got brown sacked.
by Ana Appelbaum November 23, 2009