Definition of Cack:

part of speech: noun

To go to stool; to ease the body by stool.

Usage examples:

• Your gran'ther used to know old Cack boys. Harriet Beecher Stowe in "Oldtown Fireside Stories The Ghost In The Mill; The Sullivan Looking-Glass; The Minister's Housekeeper; The Widow's Bandbox; Captain Kidd's Money; "Mis' Elderkin's Pitcher"; The Ghost In The Cap'n Brownhouse".

• Now, Cack Newhaven, if that's your noble name- as I am here, trot out a few heiresses, would you? Mary Cholmondeley in "Red Pottage".

• As my father and the dragon passed over the Ocean Rocks they heard a tiny excited voice scream, " Bum cack Ruth Stiles Gannett in "My Father's Dragon".

• Cack a lack- lack- lack, lack, lack: loo, loo, loo. Augustus J. C. Hare in "Story of My Life, volumes 1-3".