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an overnight bag typically used while shacking. Items might include: toothbrush, toothpaste, deoderant, clean scoks and underwear. shacking, shacker, walk of shame, booty call
"Girl! Ima spend the night over at Gregs house, I'm going to need me a shack pack so I can go straight to work"
by Going 2 Shack Tonight November 02, 2007