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fatsack: n. (pronunciation: fat-sak) One who is lazy, careless or irritable. The word also commonly refers to someone who eats food excessively, obsessively, or unnecessarily.
"You're such a fatsack," Denise told Leroy emphatically when she saw him eating a third serving of pie while sitting lazily on the couch.
by nitterpixi August 06, 2010
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when a skinny person who doesnt normally have boobs gets fat and therefore has sacks of fat hanging off their chest
by Ryankensington October 06, 2015