n. The bottom end of something; the human buttocks.
n. A cigarette butt.
The Century Dictionary and Cyclopedia
n. Bottom; buttocks; butt-end; end; extremity: as, a candle-doup.
n. A loop at the end. See the extract.
Word Usage
"Wullie sits down at the fire, and awa 'wi' her yarn gaes the wife; but scarce had she steekit the door, and wan half-way down the close, when the bairn cocks up on its doup in the cradle, and rounds in Wullie's lug: 'Wullie"